Audi rs6 quattro, commonly referred to as the RS6, is the highest performing version, and top-of-the-line specification of the Audi A6, positioned above the
426 kW (580 hp) and 650 Nm (479.42 lb-ft) of torque - with its twin-turbo V10 and quattro permanent all-wheel drive, the Audi RS6 is a car without equal. Following on the heels of the Audi RS6 Avant, Audi now presents the sedan. It drives like a supercar thanks to its superior performance and thrilling dynamics, yet offers all of the everyday utility of a large business sedan.
The engine of the new Audi RS6 is a high-tech work of art. The 4,991 cc V10 bundles a number of Audi's race-winning technologies - FSI direct fuel injection, dry-sump lubrication and two turbochargers. With up to 1.6 bar of boost pressure, these provide smooth, powerful thrust and an incomparable power band: The peak torque of 650 Nm (479.42 lb-ft) is available from 1,500 to 6,250 rpm and thus nearly over the entire rev range. Peak power of 426 kW (580 hp) is generated between 6,250 rpm and the maximum figure of 6,700 rpm.
With a power-to-weight ratio of 3.4 kilograms per hp, the Audi RS6 performs like a supercar. It catapults to 100 km/h (62.14 mph) in 4.5 seconds on its way to an electronically-limited top speed of 250 km/h (155.34 mph), which can be optionally raised to 280 km/h (173.98 mph). The V10 responds immediately and spontaneously to the throttle, and is very smooth while accelerating with a powerful roar.
The engine's power flows through the six-speed tiptronic, one of a new, dynamic generation of Audi automatic transmissions. Its reaction time has been reduced to one tenth of a second, shift time has been halved compared to units used in other models and transmission ratios are short. The driver can also manually change gears either using the shift lever or the paddles on the steering wheel. The tiptronic transmission transfers the power to an extremely sporty, rear-weighted quattro drive train.
The technology bundled into the suspension of the Audi RS6 guarantees an amazing performance experience. The front axle features four lightweight aluminum control arms per wheel, whose elastokinematics have been designed for particularly sporty performance. The characteristics of the speed-dependent servotronic power steering were retuned and the steering gear ratio is a direct 12.5:1. The rear suspension kinematics have also been modified.
The development engineers have also deployed an exclusive damping technology: Dynamic Ride Control DRC reduces pitch and roll using purely mechanical means. Hydraulic lines and valves connect diagonally opposed pairs of shock absorbers. When cornering, the flow of fluid to the damper of the compressing outside front wheel increases, providing firmer support and reducing roll. When combined with the sports suspension plus, DRC offers a choice of three selectable damper settings - sport, dynamic and comfort - which can be activated via the MMI.
The electronic stabilization system ESP offers maximum driving fun with uncompromised safety. Its relatively high activation threshold encourages a dynamic driving style. It offers a Sport mode and can also be deactivated entirely.
The new Audi RS6 rolls on 19-inch alloy wheels shod with 255/40 tires. Up front, six-piston fixed aluminum calipers - painted black and decorated with RS badges - clamp down on 390 millimeter brake disks. The rear brake disks measure 365 millimeters in diameter. The rear axle features single-piston floating brake calipers. The floating steel disks feature large cooling ducts and axial perforations for enhanced performance and less weight.
9.5J x 20-inch wheels are offered as an option. These allow the use of a ceramic brake system. The 420 (front) and 356 (rear) millimeter disks weigh a total of 12.2 kilograms (26.90 lb) less than the steel disks. The calipers - up front with eight pistons - are painted anthracite and labeled "Audi ceramic."
The body of the 4.93 meter (16.17 ft) Audi RS6 also sports a number of distinctive features that immediately identify it as a dynamic, top-of-the-line model. These include the single-frame grill, the air intakes, the headlights featuring xenon plus, adaptive light and Audi RS6-specific LED daytime running lights, the flared fenders and deep side skirts, the rear diffuser, the spoiler integrated into the trunk lid and the two large oval exhaust pipes.
The Audi RS6 quattro, commonly referred to as the RS6, is the highest performing version, and top-of-the-line specification of the Audi A6, positioned above the Audi S6. It is a mid-size sports-focused executive car, produced by the high performance private subsidiary company quattro GmbH, for Audi AG, part of the Volkswagen Group.
Both versions of the RS6 are, or have been produced as, a five-door five-seat "Avant", Audi's name for an estate car–station wagon, along with a four-door five-seat saloon–sedan. Based on the A6 platform, the RS6's internal combustion engines are front-mounted and longitudinally oriented, while the transmission is mounted immediately at the rear of the engine in a longitudinal orientation, in the form of a transaxle. Unlike the A6 and S6, however, the RS6's engines have not been shared with any other vehicle in Audi's lineup.
The "RS" initials are taken from the German: RennSport – literally translated as "racing sport", and is Audi's ultimate 'top-tier' high performance trim level, positioned a noticeable step above the "S" model specification level of Audi's regular model range line-up. Like all Audi "RS" models, the RS6 pioneers some of Audi's newest and advanced engineering and technology, and so could be described as a halo vehicle, with the latest RS6 having the most powerful internal combustion engine out of all Audi models, with more power than the physically larger Audi S8. Furthermore, like all RS models, the RS6 is only available with Audi's 'trademark' Torsen-based quattro permanent four-wheel drive system.
The C5 RS6 was the fourth model to come out of Audi's private subsidiary company, "quattro GmbH". The first was the Audi RS2 Avant, from a joint venture between Porsche and quattro GmbH for the Audi marque. The second was the Audi C4 S6 Plus, produced from April 1996 to July 1997. Third was the 2000 Audi B5 RS4; the fifth was the 2005 Audi B7 A4 DTM Edition saloon, and the sixth was the 2006 Audi B7 RS4. The seventh and current (as of January 2010[update]) quattro GmbH model is the latest Audi C6 RS6.
Production of the original Audi C5 RS6 began in June 2002 and ended in September 2004. The second and current Audi C6 RS6 was introduced at the 2007 Frankfurt Motor Show. The original RS6 was the first Audi RS model exported to North America, while the succeeding C6 RS6 is only sold in Europe.
The original Audi C5 RS6 quattro (Typ 4B) was the top-of-the-line user of the Volkswagen Group C5 platform (1997–2004), and was initially available as a five-door five-seat Avant - Audis name for an estate or station wagon. A four-door five-seat saloon/sedan followed shortly after the launch of the Avant. Derived from the Audi C5 S6 (itself derived from the Audi C5 A6), the RS6 also shares the aluminium structure from the firewall and forward with the C5 A6s with V8 engines (A6 4.2 V8 quattro, S6 saloon/Avant). It was manufactured from July 2002 through to September 2004.
Official performance figures for the Avant, whilst consuming the recommended high octane 98 RON "Super Plus" unleaded petrol indicate the 0-100 kilometres per hour (62.1 mph) dash would be completed in 4.6 seconds (s), reaching 200 km/h (124.3 mph) in 16.8 seconds (16.6 s for the saloon). Official figures state an electronically limited top speed of 250 km/h (155.3 mph), although most "RS" owners report that the speed limiter is rather liberal on all RS cars, with genuine 'limited' top speeds of 270 km/h (167.8 mph) being possible to achieve. Using a lower octane rated petrol, such as the standard 95 RON "Premium" unleaded will reduce the engine power output, and have logical reduction in performance.
Luggage capacity, measured according to the VDA block method in the Avant ranges from 455 litres (16.07 cu ft), to 1,590 litres (56.15 cu ft) with the rear seats folded down. For the saloon, the boot holds 424 litres (14.97 cu ft)
For the C5 RS6 powertrain detail, the internal combustion engine is an all-aluminium alloy 4,172 cubic centimetres (254.6 cu in) twin-turbocharged ('biturbo'), twin double overhead camshaft (2xDOHC), 5 valve per cylinder version of Audi's 4.2 litre 90° V8 petrol engine (parts code prefix: 077, identification code: BCY), developed and manufactured in the Germany and UK by quattro GmbH and Cosworth Technology (now known as MAHLE Powertrain). With the addition of the two turbochargers (one per cylinder bank), the motive power output of the V8 engine was increased to 331 kilowatts (450 PS; 444 bhp) at 5,700 to 6,400 rpm, and generated 560 newton metres (413 ft·lbf) of torque. The combination of the 4.2 litre V8, variable inlet valve timing, and twin turbochargers gave the RS6 an exceptionally wide power band, with peak torque available from 1,950 to 5,600 rpm.
Further detail of the engine includes fully sequential electronic multi-point fuel injection with intake manifold-sited fuel injectors,[1] mapped direct ignition system[2] with solid-state high voltage distribution using eight individual single-spark ignition coils and NGK longlife spark plugs, and three knock sensors. Engine management uses a Bosch Motronic[3] ME 7.1.1 engine control unit, which controls all functions of the engine operation; including fuel delivery, ignition system, valve timing, emissions control systems, and torque reduction control - the latter operating in conjunction with the Bosch ESP 5.7 Electronic Stability Programme, as part of the "Anti Slip Regulation" (ASR) traction control system. The engine is compliant with the European Union Euro3 (EU3) standard, and includes two close-coupled primary catalytic converters (CATs), two underfloor main CATs, and four heated oxygen sensors which manage the cylinder bank selective lambda control. This results in a CO2 emissions rating of 350 g/km for the Avant and saloon in standard configuration.
It has an electronically-controlled five-speed ZF 5HP24A tiptronic automatic transmission (parts code prefix: 01L, identification code: GAG) (gear ratios - 1st: 3.571, 2nd: 2.200, 3rd: 1.505, 4th: 1.000, 5th: 0.804), with lock-up torque converter in all forward gears. It has "hill detection" capability, and, despite many press articles stating that the gearbox was programmed to "blip" the throttle for downshift gear changes, no UK owners have ever found this feature to be present. The transmission control unit ECU incorporates "fuzzy logic" with its "Dynamic Shift Programme" (DSP), with the shift pattern adapting to suit individual driving styles. 'tiptronic' manual control can be achieved with either the floor mounted gear shift lever, or the steering wheel mounted 'paddles'.
The RS6 was only available with Audi's Torsen-based quattro permanent four-wheel drive, utilising the Torsen T-2 dynamic 'automatic torque biasing' (ATB) centre differential (diff), a modified unit which was being used in the 6.0 litre W12-powered Audi D2 A8. The torque from the engine is first routed from the gearbox output shaft to the Torsen centre diff, and then automatically divided and apportioned between the front and rear axles.
The front and rear axle differentials (ratio: 3.197) are a conventional "open" type, but utilise an "Electronic Differential Lock" (EDL). EDL is an integrated additional function of the Bosch Electronic Stability Programme (ESP) system, and works by monitoring and comparing the individual roadwheel speeds across an axle, and braking an individual wheel which is sensed to have lost traction (spinning), thus transferring torque across the axle to the wheel/tyre which does have grip. "Anti-Slip Regulation" (ASR), more commonly known as traction control system[4] completes the Bosch ESP-related driver aids
Utilising the same fully independent four-link front suspension, and double wishbone rear, as its related A6 and S6, the RS6 was lowered by 20 millimetres (0.79 in), with a 30% stiffer spring rate, and 40% increased compression damping. The RS6 also served as the debut model for Audi's "Dynamic Ride Control" (DRC) system. The DRC system is mainly mechanical, and uses a pump to provide additional pressure to individual dampers (shock absorbers) during cornering, acceleration or braking; to counteract rolling and pitching. The system can adjust the stiffness at each individual damper constantly; to maintain both a comfortable ride on straight roads, and high level of poise and grip when cornering hard, accelerating, or braking. The DRC's main advantage is that it operates without the need for complicated electronics, as required in similar systems from Mercedes-Benz and other competitors. Its main drawback is that the DRC dampers have been known to fail (leaking fluid from the cross-linked circuits), which can affect the handling and ride quality of the vehicle; some owners have reported needing multiple replacements of faulty DRC units and many drivers have opted to replace the system with simpler and more reliable aftermarket coilover suspension
The front brakes feature fixed Brembo eight-piston monoblock brake calipers, with four pads in each caliper, working with floating and radially vented brake discs, sized at 365 millimetres (14.4 in) in diameter, by 33 mm (1.30 in) thick. The rear features single-piston floating ATE calipers with integrated cable-operated parking brake mechanism, mated to floating and radially vented disc, sized 335 mm (13.2 in) by 23 mm (0.91 in). Front and rear brake calipers are finished in a high-gloss black paint, with the fronts incorporating the Audi "RS" logo. Both front and rear floating discs are held in by metal pins to the lightweight disc hub, and allow 1.0 mm (0.039 in) of lateral thermal expansion from the hub centre.
Bosch ESP 5.7 Electronic Stability Programme,[5] with Anti-lock Braking System (ABS),[6] Electronic Brakeforce Distribution (EBD), and Brake Assist (BA) was standard fitment.
There were total of three original equipment manufacturer (OEM) roadwheel and tyre types produced for the RS6. In Europe and elsewhere, 19" wheels were standard, with an optional 18" package. In the U.S. market, the 18" package was the only available offering. An 18" winter package, with Dunlop SP Winter Sport M3 tyres (225/45 ZR18 95V) was universally available.
For 18" wheels, the standard tyre fitted was 255/40 ZR18 99Y XL with eXtraLoad (XL) rating. This is often stressed, and is the only recommendation by Audi, as RS6 does weigh 1,865 kilograms (4,112 lb). Tyres which are not rated XL are not safe (nor legal, in most countries) for use. Owners reported finding Continental ContiSportContact 2, Dunlop SP Sport 9000, Michelin Pilot Sport PS2, and Pirelli P-Zero Rosso as OEM suppliers for tyres on the RS6. However, according to ETKA, the Dunlop and Pirelli tyres were subsequently withdrawn from official supply, and the Continental SportContact 2 has been superseded by the SportContact 3. An additional tyre from Bridgestone has now been included as officially recommended fitment, the Potenza RE050A.
For 19" wheels, the standard tyre fitted was 255/35 ZR19 96Y XL. However, there were debates as to how safe 19" wheels and tyres are,[citation needed] as the XL rating achieves a 96 Load Index (710 kg (1,565 lb) load rating). In contrast, the 255/40 ZR18 XL will get you 99 Load Index, good for 775 kg (1,709 lb) per tyre. Current officially recommended tyres from ETKA for the 19" rims only include the Michelin Pilot Sport PS2, Continental ContiSportContact 3 and Vredestein Ultrac Sessanta also 96Y XL.
Between April and September 2004, there was a final limited run of an even higher-performance RS6, named the Audi RS6 Plus. This had an increased engine power output (identification code: BRV), and produced over 353 kilowatts (480 PS; 473 bhp) at 6,000-6,400 rpm, with the same 560 newton metres (413 ft·lbf) of torque at 1,950-6,000 rpm. This engine was also developed and manufactured in the UK by Cosworth Technology (now known as MAHLE Powertrain). The additional performance was achieved with a new engine control unit (ECU), and two additional coolant radiators behind the side-mounted intercoolers (these were standard fitment on the standard RS6 in hotter climate countries). Official performance figures indicate the discipline of sprinting from standstill to 100 kilometres per hour (62.1 mph) in 4.6 seconds. The RS6 Plus carries on to reach 200 km/h (124.3 mph) in 17.36 seconds, and has an official top speed of 280 km/h (174.0 mph).
The RS6 Plus came with Dynamic Ride Control (DRC) as standard, and also included a no-cost option of "Sports Suspension Plus", which lowered the standard sports suspension by a further 10 millimetres (0.39 in) over the standard RS6. A revised steering rack, with a reduced ratio of 14.3 for firmer steering feel was included, and resulted in a turning circle of 11.7 metres (38.4 ft). The brakes now included cross-drilled discs. The wheels were only available in the 9Jx19" '5-arm design' alloys, finished in "anthracite" (dark grey), with 255/35 ZR19 96Y XL tyres.
The car was available only as an Avant, and was sold only in European markets. Visual differences for the RS6 Plus included the "black optic pack", which consisted of black finish to the framing of the radiator grille, exterior window trims, tailgate lower trim, roof rails, and exhaust tailpipes. It quickly sold out once it was released (999 units total). The last three digits of the Vehicle Identification Number (VIN) are reproduced on a plaque inside the car, displayed on the centre console.
The second-generation RS6, later called the Audi RS6 5.0 TFSI quattro (Typ 4F) and based on the Volkswagen Group C6 automobile platform, was launched in September 2007 at the Frankfurt Motor Show. With factory production starting in April 2008, it became immediately available in Europe from the same date, and began being exported outside of there in 2009. The total production run of the C6 RS6 was 8,000 units, with 6,500 of these being Avants and the remainder in saloon form.[8] The RS6 was not available in North America, leaving the S6 as the top performing trim in that region. The unpopularity of wagons there made it unlikely that the RS6 Avant would have been exported. It has been rumored that the RS6 saloon/sedan would be offered in the United States,[9] however nothing came of this as the RS6 importer could not clear US regulations.[10] Production of the C6 RS6 ended in third quarter of 2010.[11]
As of January 2010[update], the RS6 was Audi's single most powerful car ever to be produced by the marque,[12][13] and positioned the car ahead of its closest competitors, the BMW M5 and the Mercedes-Benz E63 AMG in terms of engine output, both of whom have naturally-aspirated engines. The RS6's 5.0L V10 biturbo engine produced a maximum motive power output of 426 kilowatts (579 PS; 571 bhp) at 6,250 to 6,700 rpm, and generated 650 newton metres (479 ft·lbf) of torque from 1,500 to 6,250 rpm, 52 kW (71 PS; 70 bhp) and 150 N·m (111 ft·lbf) more than BMW's 5.0L V10 engine. However the estimated price of the RS6 sedan in 2010 was $160,000 USD in 2010 (another source quotes $126,000 USD in 2009, likely making the RS6 perhaps too expensive for the United States market[14]) which set it apart from other executive car performance variants, compared to the BMW M5's MRSP of $85,700 USD, the Mercedes-Benz E63 AMG's $87,700 USD, and the Audi S6's price of $78,025 USD.[15][16][17][18]
Official performance figures for the Avant: 4.6 seconds for the 0-100 kilometres per hour (62.1 mph) sprint, 12.7 seconds 0-200 km/h (124.3 mph), and top speed is electronically limited to 250 km/h (155.3 mph), with a factory option to de-restrict the top speed to 274 km/h (170.3 mph). In standard form, CO2 emissions are rated at 333 g/km. The saloon reaches 0-100 km/h (62.1 mph) in 4.5 seconds.
For the powertrain detail of the RS6, the internal combustion engine (parts code: 07L, identification code: BUH) was what Audi claimed the first all-aluminium alloy 5.0 litre (4,991 cc (304.6 cu in)) 90° V10 twin-turbocharged ("biturbo"), Fuel Stratified Injection (FSI), with a dry sump lubrication system. It has been speculated that an even more powerful version of this engine may go into the 2012 Audi S8, tuned to over 600 horsepower.[19] This engine is related to the naturally aspirated V10 found in the Audi R8, Audi S6, Audi S8, and Lamborghini Gallardo, however the RS6's engine has around 400 unique parts. [17][20]
The 5.0L V10 engine has four valves per cylinder, with twin chain-driven double overhead camshafts (2xDOHC), and variable valve timing[21] for both inlet and exhaust camshafts. Charged intake air is cooled with two side-mounted intercoolers (SMIC)s. Engine management is by way of two Bosch DI-Motronic[22] ME 9.1.2 engine control units, which act as "master" and "slave" concepts; two ECUs are required due to the high revs the engine can achieve. It also uses mapped direct ignition system with ten individual direct-acting spark coils, an electronic drive by wire throttle (Bosch "E-Gas"),[23] cylinder-selective knock control, and cylinder bank adaptive lambda control, utilising eight lambda sensors.
A total of seven radiators, and four electric cooling fans are needed to cool the engine, and related components under the aluminium bonnet of the RS6.
Drive output passes through a modified ZF 6HP26A six-speed tiptronic automatic transmission (parts code: 09E, identification code: KZQ or KZH) (gear ratios - 1st: 4.171, 2nd: 2.340, 3rd: 1.521, 4th: 1.143, 5th: 0.867, 6th: 0.691), with shortened shift times, with "Dynamic Shift Programme" (DSP) and "Sport" mode. It has paddle-shifts mounted behind the flat-bottomed steering wheel, similar in design to the Audi B7 RS4. The gearbox is set by default, in conventional automatic mode, to delay up-changes during acceleration, and change down earlier to maximise engine braking. Downchanges in all modes of operation include the Powertrain Control Module electronic control unit (ECU) "blipping" the Bosch "E-Gas" drive by wire throttle, for smoother shift changes. The hydraulic torque converter includes a lock-up function in all forward gears, and is able to completely disconnect when the vehicle is stationary, thus saving fuel.
Like all Audi "RS" models, the RS6 is fitted with Audi's 'trademark' quattro permanent four-wheel drive as standard; with this version of the RS6 using the latest asymmetric dynamic 40:60 front-to-rear default torque distribution from the Torsen T-3 'automatic torque biasing' (ATB) centre differential. This latest incarnation of the Torsen quattro, first seen in the B7 RS4, can automatically dynamically apportion up to a maximum 100% torque to the rear axle, or up to 80% to the front, dependent on traction conditions.
The front and rear axle final drives are conventional "open" differentials (ratio 3.317), and use the Audi "Electronic Differential Lock" (EDL). EDL is a part, or "function" of the Bosch ESP 8.0 Electronic Stability Programme,[5] which also includes "Anti-Slip Regulation" (ASR) traction control system. EDL does not 'lock' the differential in a traditional sense, but uses electronics to monitor individual roadwheel speeds across an axle, and merely applies the brake to just one wheel on that axle which is sensed to have lost traction (by rotating faster than the opposite wheel, beyond normal accepted deviations). This braked wheel has the effect of transferring the torque across the axle to the wheel which is deemed to still have traction.
Standard brakes on the RS6 consist of cross-drilled, radially vented and floating iron discs, the front discs sized at 390 millimetres (15.35 in) in diameter by 36 mm (1.417 in) thick, and the rears at 356 mm (14.02 in) diameter by 28 mm (1.102 in). The front discs are clamped by gloss black six-piston fixed Brembo monoblock alloy calipers incorporating the "RS" logo, and black single-piston floating calipers, with integrated electro-mechanical parking brake linkage actuating on the rear discs. This electro-mechanical parking brake serves another purpose, it doubles as a full emergency brake whilst the car is in motion, by applying maximum braking effort to all four wheels, resulting in activating the Anti-lock Braking System (ABS).
Optional "Audi ceramic" Carbon fibre-reinforced Silicon Carbide (C/SiC) composite front brakes are available, only with 20 inch roadwheels, which use 420 mm (16.54 in) diameter by 40 mm (1.575 in) thick drilled, vented, and floating SGL Carbon composite discs, with grey painted eight-piston fixed Alcon monobloc alloy calipers with the "Audi ceramic" logo.
Irrespective of the type of disc construction, all brake discs are mounted via high strength steel mounting pins which connect the 'working' surface of the disc to lightweight alloy disc hubs.
A specifically 'tuned' "sport-biased" Bosch ESP 8.0 Electronic Stability Programme is standard, and includes Anti-lock Braking System (ABS) and Electronic Brakeforce Distribution (EBD), and Brake Assist (BA). This ESP system has three user-selectable settings: "ESP-on" - the standard default full protection mode, "ESP-sportmode" (which turns off the ASR and EDL traction functions), and "ESP-off" (which fully disables all 'stability' and 'traction' related functions).
Standard roadwheels (in the UK) are 9.5Jx20 inch '5-segment-spoke' design alloy wheels running on 275/35 ZR20 102Y XL (eXtra Load) tyres (rated at 850 kilograms (1,874 lb) per tyre), with official supplies being either Pirelli P-Zero Rosso or Dunlop SP SportMaxx GT. A no-cost optional 9.5Jx20 '7-arm double spoke' design (identical style to B7 RS4), or 9Jx19 inch '10-spoke' design alloys with 255/40 ZR19 Michelin Pilot Sport PS2 tyres
The official details for the new Audi A6 aren’t even cold yet and already we are hearing ripples of rumors about different versions of the luxury sedan. It’s only natural that the company will follow the A6 with an S and RS (Renn Sport) version for it, so these rumors are more fact than fiction. However, while the RS version won’t be unveiled until about another two years, many people are too geeked up about it to wait that long, and this fresh rendering is proof of that.
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Avant range car review by the expert drivers covering comfort, performance, coolness, quality, handing, practicality and running costs Audi rs6
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426 kW (580 hp) and 650 Nm (479.42 lb-ft) of torque - with its twin-turbo V10 and quattro permanent all-wheel drive, the Audi RS6 is a car without equal. Following on the heels of the Audi RS6 Avant, Audi now presents the sedan. It drives like a supercar thanks to its superior performance and thrilling dynamics, yet offers all of the everyday utility of a large business sedan.
The engine of the new Audi RS6 is a high-tech work of art. The 4,991 cc V10 bundles a number of Audi's race-winning technologies - FSI direct fuel injection, dry-sump lubrication and two turbochargers. With up to 1.6 bar of boost pressure, these provide smooth, powerful thrust and an incomparable power band: The peak torque of 650 Nm (479.42 lb-ft) is available from 1,500 to 6,250 rpm and thus nearly over the entire rev range. Peak power of 426 kW (580 hp) is generated between 6,250 rpm and the maximum figure of 6,700 rpm.
With a power-to-weight ratio of 3.4 kilograms per hp, the Audi RS6 performs like a supercar. It catapults to 100 km/h (62.14 mph) in 4.5 seconds on its way to an electronically-limited top speed of 250 km/h (155.34 mph), which can be optionally raised to 280 km/h (173.98 mph). The V10 responds immediately and spontaneously to the throttle, and is very smooth while accelerating with a powerful roar.
The engine's power flows through the six-speed tiptronic, one of a new, dynamic generation of Audi automatic transmissions. Its reaction time has been reduced to one tenth of a second, shift time has been halved compared to units used in other models and transmission ratios are short. The driver can also manually change gears either using the shift lever or the paddles on the steering wheel. The tiptronic transmission transfers the power to an extremely sporty, rear-weighted quattro drive train.
The technology bundled into the suspension of the Audi RS6 guarantees an amazing performance experience. The front axle features four lightweight aluminum control arms per wheel, whose elastokinematics have been designed for particularly sporty performance. The characteristics of the speed-dependent servotronic power steering were retuned and the steering gear ratio is a direct 12.5:1. The rear suspension kinematics have also been modified.
The development engineers have also deployed an exclusive damping technology: Dynamic Ride Control DRC reduces pitch and roll using purely mechanical means. Hydraulic lines and valves connect diagonally opposed pairs of shock absorbers. When cornering, the flow of fluid to the damper of the compressing outside front wheel increases, providing firmer support and reducing roll. When combined with the sports suspension plus, DRC offers a choice of three selectable damper settings - sport, dynamic and comfort - which can be activated via the MMI.
The electronic stabilization system ESP offers maximum driving fun with uncompromised safety. Its relatively high activation threshold encourages a dynamic driving style. It offers a Sport mode and can also be deactivated entirely.
The new Audi RS6 rolls on 19-inch alloy wheels shod with 255/40 tires. Up front, six-piston fixed aluminum calipers - painted black and decorated with RS badges - clamp down on 390 millimeter brake disks. The rear brake disks measure 365 millimeters in diameter. The rear axle features single-piston floating brake calipers. The floating steel disks feature large cooling ducts and axial perforations for enhanced performance and less weight.
9.5J x 20-inch wheels are offered as an option. These allow the use of a ceramic brake system. The 420 (front) and 356 (rear) millimeter disks weigh a total of 12.2 kilograms (26.90 lb) less than the steel disks. The calipers - up front with eight pistons - are painted anthracite and labeled "Audi ceramic."
The body of the 4.93 meter (16.17 ft) Audi RS6 also sports a number of distinctive features that immediately identify it as a dynamic, top-of-the-line model. These include the single-frame grill, the air intakes, the headlights featuring xenon plus, adaptive light and Audi RS6-specific LED daytime running lights, the flared fenders and deep side skirts, the rear diffuser, the spoiler integrated into the trunk lid and the two large oval exhaust pipes.
The Audi RS6 quattro, commonly referred to as the RS6, is the highest performing version, and top-of-the-line specification of the Audi A6, positioned above the Audi S6. It is a mid-size sports-focused executive car, produced by the high performance private subsidiary company quattro GmbH, for Audi AG, part of the Volkswagen Group.
Both versions of the RS6 are, or have been produced as, a five-door five-seat "Avant", Audi's name for an estate car–station wagon, along with a four-door five-seat saloon–sedan. Based on the A6 platform, the RS6's internal combustion engines are front-mounted and longitudinally oriented, while the transmission is mounted immediately at the rear of the engine in a longitudinal orientation, in the form of a transaxle. Unlike the A6 and S6, however, the RS6's engines have not been shared with any other vehicle in Audi's lineup.
The "RS" initials are taken from the German: RennSport – literally translated as "racing sport", and is Audi's ultimate 'top-tier' high performance trim level, positioned a noticeable step above the "S" model specification level of Audi's regular model range line-up. Like all Audi "RS" models, the RS6 pioneers some of Audi's newest and advanced engineering and technology, and so could be described as a halo vehicle, with the latest RS6 having the most powerful internal combustion engine out of all Audi models, with more power than the physically larger Audi S8. Furthermore, like all RS models, the RS6 is only available with Audi's 'trademark' Torsen-based quattro permanent four-wheel drive system.
The C5 RS6 was the fourth model to come out of Audi's private subsidiary company, "quattro GmbH". The first was the Audi RS2 Avant, from a joint venture between Porsche and quattro GmbH for the Audi marque. The second was the Audi C4 S6 Plus, produced from April 1996 to July 1997. Third was the 2000 Audi B5 RS4; the fifth was the 2005 Audi B7 A4 DTM Edition saloon, and the sixth was the 2006 Audi B7 RS4. The seventh and current (as of January 2010[update]) quattro GmbH model is the latest Audi C6 RS6.
Production of the original Audi C5 RS6 began in June 2002 and ended in September 2004. The second and current Audi C6 RS6 was introduced at the 2007 Frankfurt Motor Show. The original RS6 was the first Audi RS model exported to North America, while the succeeding C6 RS6 is only sold in Europe.
The original Audi C5 RS6 quattro (Typ 4B) was the top-of-the-line user of the Volkswagen Group C5 platform (1997–2004), and was initially available as a five-door five-seat Avant - Audis name for an estate or station wagon. A four-door five-seat saloon/sedan followed shortly after the launch of the Avant. Derived from the Audi C5 S6 (itself derived from the Audi C5 A6), the RS6 also shares the aluminium structure from the firewall and forward with the C5 A6s with V8 engines (A6 4.2 V8 quattro, S6 saloon/Avant). It was manufactured from July 2002 through to September 2004.
Official performance figures for the Avant, whilst consuming the recommended high octane 98 RON "Super Plus" unleaded petrol indicate the 0-100 kilometres per hour (62.1 mph) dash would be completed in 4.6 seconds (s), reaching 200 km/h (124.3 mph) in 16.8 seconds (16.6 s for the saloon). Official figures state an electronically limited top speed of 250 km/h (155.3 mph), although most "RS" owners report that the speed limiter is rather liberal on all RS cars, with genuine 'limited' top speeds of 270 km/h (167.8 mph) being possible to achieve. Using a lower octane rated petrol, such as the standard 95 RON "Premium" unleaded will reduce the engine power output, and have logical reduction in performance.
Luggage capacity, measured according to the VDA block method in the Avant ranges from 455 litres (16.07 cu ft), to 1,590 litres (56.15 cu ft) with the rear seats folded down. For the saloon, the boot holds 424 litres (14.97 cu ft)
For the C5 RS6 powertrain detail, the internal combustion engine is an all-aluminium alloy 4,172 cubic centimetres (254.6 cu in) twin-turbocharged ('biturbo'), twin double overhead camshaft (2xDOHC), 5 valve per cylinder version of Audi's 4.2 litre 90° V8 petrol engine (parts code prefix: 077, identification code: BCY), developed and manufactured in the Germany and UK by quattro GmbH and Cosworth Technology (now known as MAHLE Powertrain). With the addition of the two turbochargers (one per cylinder bank), the motive power output of the V8 engine was increased to 331 kilowatts (450 PS; 444 bhp) at 5,700 to 6,400 rpm, and generated 560 newton metres (413 ft·lbf) of torque. The combination of the 4.2 litre V8, variable inlet valve timing, and twin turbochargers gave the RS6 an exceptionally wide power band, with peak torque available from 1,950 to 5,600 rpm.
Further detail of the engine includes fully sequential electronic multi-point fuel injection with intake manifold-sited fuel injectors,[1] mapped direct ignition system[2] with solid-state high voltage distribution using eight individual single-spark ignition coils and NGK longlife spark plugs, and three knock sensors. Engine management uses a Bosch Motronic[3] ME 7.1.1 engine control unit, which controls all functions of the engine operation; including fuel delivery, ignition system, valve timing, emissions control systems, and torque reduction control - the latter operating in conjunction with the Bosch ESP 5.7 Electronic Stability Programme, as part of the "Anti Slip Regulation" (ASR) traction control system. The engine is compliant with the European Union Euro3 (EU3) standard, and includes two close-coupled primary catalytic converters (CATs), two underfloor main CATs, and four heated oxygen sensors which manage the cylinder bank selective lambda control. This results in a CO2 emissions rating of 350 g/km for the Avant and saloon in standard configuration.
It has an electronically-controlled five-speed ZF 5HP24A tiptronic automatic transmission (parts code prefix: 01L, identification code: GAG) (gear ratios - 1st: 3.571, 2nd: 2.200, 3rd: 1.505, 4th: 1.000, 5th: 0.804), with lock-up torque converter in all forward gears. It has "hill detection" capability, and, despite many press articles stating that the gearbox was programmed to "blip" the throttle for downshift gear changes, no UK owners have ever found this feature to be present. The transmission control unit ECU incorporates "fuzzy logic" with its "Dynamic Shift Programme" (DSP), with the shift pattern adapting to suit individual driving styles. 'tiptronic' manual control can be achieved with either the floor mounted gear shift lever, or the steering wheel mounted 'paddles'.
The RS6 was only available with Audi's Torsen-based quattro permanent four-wheel drive, utilising the Torsen T-2 dynamic 'automatic torque biasing' (ATB) centre differential (diff), a modified unit which was being used in the 6.0 litre W12-powered Audi D2 A8. The torque from the engine is first routed from the gearbox output shaft to the Torsen centre diff, and then automatically divided and apportioned between the front and rear axles.
The front and rear axle differentials (ratio: 3.197) are a conventional "open" type, but utilise an "Electronic Differential Lock" (EDL). EDL is an integrated additional function of the Bosch Electronic Stability Programme (ESP) system, and works by monitoring and comparing the individual roadwheel speeds across an axle, and braking an individual wheel which is sensed to have lost traction (spinning), thus transferring torque across the axle to the wheel/tyre which does have grip. "Anti-Slip Regulation" (ASR), more commonly known as traction control system[4] completes the Bosch ESP-related driver aids
Utilising the same fully independent four-link front suspension, and double wishbone rear, as its related A6 and S6, the RS6 was lowered by 20 millimetres (0.79 in), with a 30% stiffer spring rate, and 40% increased compression damping. The RS6 also served as the debut model for Audi's "Dynamic Ride Control" (DRC) system. The DRC system is mainly mechanical, and uses a pump to provide additional pressure to individual dampers (shock absorbers) during cornering, acceleration or braking; to counteract rolling and pitching. The system can adjust the stiffness at each individual damper constantly; to maintain both a comfortable ride on straight roads, and high level of poise and grip when cornering hard, accelerating, or braking. The DRC's main advantage is that it operates without the need for complicated electronics, as required in similar systems from Mercedes-Benz and other competitors. Its main drawback is that the DRC dampers have been known to fail (leaking fluid from the cross-linked circuits), which can affect the handling and ride quality of the vehicle; some owners have reported needing multiple replacements of faulty DRC units and many drivers have opted to replace the system with simpler and more reliable aftermarket coilover suspension
The front brakes feature fixed Brembo eight-piston monoblock brake calipers, with four pads in each caliper, working with floating and radially vented brake discs, sized at 365 millimetres (14.4 in) in diameter, by 33 mm (1.30 in) thick. The rear features single-piston floating ATE calipers with integrated cable-operated parking brake mechanism, mated to floating and radially vented disc, sized 335 mm (13.2 in) by 23 mm (0.91 in). Front and rear brake calipers are finished in a high-gloss black paint, with the fronts incorporating the Audi "RS" logo. Both front and rear floating discs are held in by metal pins to the lightweight disc hub, and allow 1.0 mm (0.039 in) of lateral thermal expansion from the hub centre.
Bosch ESP 5.7 Electronic Stability Programme,[5] with Anti-lock Braking System (ABS),[6] Electronic Brakeforce Distribution (EBD), and Brake Assist (BA) was standard fitment.
There were total of three original equipment manufacturer (OEM) roadwheel and tyre types produced for the RS6. In Europe and elsewhere, 19" wheels were standard, with an optional 18" package. In the U.S. market, the 18" package was the only available offering. An 18" winter package, with Dunlop SP Winter Sport M3 tyres (225/45 ZR18 95V) was universally available.
For 18" wheels, the standard tyre fitted was 255/40 ZR18 99Y XL with eXtraLoad (XL) rating. This is often stressed, and is the only recommendation by Audi, as RS6 does weigh 1,865 kilograms (4,112 lb). Tyres which are not rated XL are not safe (nor legal, in most countries) for use. Owners reported finding Continental ContiSportContact 2, Dunlop SP Sport 9000, Michelin Pilot Sport PS2, and Pirelli P-Zero Rosso as OEM suppliers for tyres on the RS6. However, according to ETKA, the Dunlop and Pirelli tyres were subsequently withdrawn from official supply, and the Continental SportContact 2 has been superseded by the SportContact 3. An additional tyre from Bridgestone has now been included as officially recommended fitment, the Potenza RE050A.
For 19" wheels, the standard tyre fitted was 255/35 ZR19 96Y XL. However, there were debates as to how safe 19" wheels and tyres are,[citation needed] as the XL rating achieves a 96 Load Index (710 kg (1,565 lb) load rating). In contrast, the 255/40 ZR18 XL will get you 99 Load Index, good for 775 kg (1,709 lb) per tyre. Current officially recommended tyres from ETKA for the 19" rims only include the Michelin Pilot Sport PS2, Continental ContiSportContact 3 and Vredestein Ultrac Sessanta also 96Y XL.
Between April and September 2004, there was a final limited run of an even higher-performance RS6, named the Audi RS6 Plus. This had an increased engine power output (identification code: BRV), and produced over 353 kilowatts (480 PS; 473 bhp) at 6,000-6,400 rpm, with the same 560 newton metres (413 ft·lbf) of torque at 1,950-6,000 rpm. This engine was also developed and manufactured in the UK by Cosworth Technology (now known as MAHLE Powertrain). The additional performance was achieved with a new engine control unit (ECU), and two additional coolant radiators behind the side-mounted intercoolers (these were standard fitment on the standard RS6 in hotter climate countries). Official performance figures indicate the discipline of sprinting from standstill to 100 kilometres per hour (62.1 mph) in 4.6 seconds. The RS6 Plus carries on to reach 200 km/h (124.3 mph) in 17.36 seconds, and has an official top speed of 280 km/h (174.0 mph).
The RS6 Plus came with Dynamic Ride Control (DRC) as standard, and also included a no-cost option of "Sports Suspension Plus", which lowered the standard sports suspension by a further 10 millimetres (0.39 in) over the standard RS6. A revised steering rack, with a reduced ratio of 14.3 for firmer steering feel was included, and resulted in a turning circle of 11.7 metres (38.4 ft). The brakes now included cross-drilled discs. The wheels were only available in the 9Jx19" '5-arm design' alloys, finished in "anthracite" (dark grey), with 255/35 ZR19 96Y XL tyres.
The car was available only as an Avant, and was sold only in European markets. Visual differences for the RS6 Plus included the "black optic pack", which consisted of black finish to the framing of the radiator grille, exterior window trims, tailgate lower trim, roof rails, and exhaust tailpipes. It quickly sold out once it was released (999 units total). The last three digits of the Vehicle Identification Number (VIN) are reproduced on a plaque inside the car, displayed on the centre console.
The second-generation RS6, later called the Audi RS6 5.0 TFSI quattro (Typ 4F) and based on the Volkswagen Group C6 automobile platform, was launched in September 2007 at the Frankfurt Motor Show. With factory production starting in April 2008, it became immediately available in Europe from the same date, and began being exported outside of there in 2009. The total production run of the C6 RS6 was 8,000 units, with 6,500 of these being Avants and the remainder in saloon form.[8] The RS6 was not available in North America, leaving the S6 as the top performing trim in that region. The unpopularity of wagons there made it unlikely that the RS6 Avant would have been exported. It has been rumored that the RS6 saloon/sedan would be offered in the United States,[9] however nothing came of this as the RS6 importer could not clear US regulations.[10] Production of the C6 RS6 ended in third quarter of 2010.[11]
As of January 2010[update], the RS6 was Audi's single most powerful car ever to be produced by the marque,[12][13] and positioned the car ahead of its closest competitors, the BMW M5 and the Mercedes-Benz E63 AMG in terms of engine output, both of whom have naturally-aspirated engines. The RS6's 5.0L V10 biturbo engine produced a maximum motive power output of 426 kilowatts (579 PS; 571 bhp) at 6,250 to 6,700 rpm, and generated 650 newton metres (479 ft·lbf) of torque from 1,500 to 6,250 rpm, 52 kW (71 PS; 70 bhp) and 150 N·m (111 ft·lbf) more than BMW's 5.0L V10 engine. However the estimated price of the RS6 sedan in 2010 was $160,000 USD in 2010 (another source quotes $126,000 USD in 2009, likely making the RS6 perhaps too expensive for the United States market[14]) which set it apart from other executive car performance variants, compared to the BMW M5's MRSP of $85,700 USD, the Mercedes-Benz E63 AMG's $87,700 USD, and the Audi S6's price of $78,025 USD.[15][16][17][18]
Official performance figures for the Avant: 4.6 seconds for the 0-100 kilometres per hour (62.1 mph) sprint, 12.7 seconds 0-200 km/h (124.3 mph), and top speed is electronically limited to 250 km/h (155.3 mph), with a factory option to de-restrict the top speed to 274 km/h (170.3 mph). In standard form, CO2 emissions are rated at 333 g/km. The saloon reaches 0-100 km/h (62.1 mph) in 4.5 seconds.
For the powertrain detail of the RS6, the internal combustion engine (parts code: 07L, identification code: BUH) was what Audi claimed the first all-aluminium alloy 5.0 litre (4,991 cc (304.6 cu in)) 90° V10 twin-turbocharged ("biturbo"), Fuel Stratified Injection (FSI), with a dry sump lubrication system. It has been speculated that an even more powerful version of this engine may go into the 2012 Audi S8, tuned to over 600 horsepower.[19] This engine is related to the naturally aspirated V10 found in the Audi R8, Audi S6, Audi S8, and Lamborghini Gallardo, however the RS6's engine has around 400 unique parts. [17][20]
The 5.0L V10 engine has four valves per cylinder, with twin chain-driven double overhead camshafts (2xDOHC), and variable valve timing[21] for both inlet and exhaust camshafts. Charged intake air is cooled with two side-mounted intercoolers (SMIC)s. Engine management is by way of two Bosch DI-Motronic[22] ME 9.1.2 engine control units, which act as "master" and "slave" concepts; two ECUs are required due to the high revs the engine can achieve. It also uses mapped direct ignition system with ten individual direct-acting spark coils, an electronic drive by wire throttle (Bosch "E-Gas"),[23] cylinder-selective knock control, and cylinder bank adaptive lambda control, utilising eight lambda sensors.
A total of seven radiators, and four electric cooling fans are needed to cool the engine, and related components under the aluminium bonnet of the RS6.
Drive output passes through a modified ZF 6HP26A six-speed tiptronic automatic transmission (parts code: 09E, identification code: KZQ or KZH) (gear ratios - 1st: 4.171, 2nd: 2.340, 3rd: 1.521, 4th: 1.143, 5th: 0.867, 6th: 0.691), with shortened shift times, with "Dynamic Shift Programme" (DSP) and "Sport" mode. It has paddle-shifts mounted behind the flat-bottomed steering wheel, similar in design to the Audi B7 RS4. The gearbox is set by default, in conventional automatic mode, to delay up-changes during acceleration, and change down earlier to maximise engine braking. Downchanges in all modes of operation include the Powertrain Control Module electronic control unit (ECU) "blipping" the Bosch "E-Gas" drive by wire throttle, for smoother shift changes. The hydraulic torque converter includes a lock-up function in all forward gears, and is able to completely disconnect when the vehicle is stationary, thus saving fuel.
Like all Audi "RS" models, the RS6 is fitted with Audi's 'trademark' quattro permanent four-wheel drive as standard; with this version of the RS6 using the latest asymmetric dynamic 40:60 front-to-rear default torque distribution from the Torsen T-3 'automatic torque biasing' (ATB) centre differential. This latest incarnation of the Torsen quattro, first seen in the B7 RS4, can automatically dynamically apportion up to a maximum 100% torque to the rear axle, or up to 80% to the front, dependent on traction conditions.
The front and rear axle final drives are conventional "open" differentials (ratio 3.317), and use the Audi "Electronic Differential Lock" (EDL). EDL is a part, or "function" of the Bosch ESP 8.0 Electronic Stability Programme,[5] which also includes "Anti-Slip Regulation" (ASR) traction control system. EDL does not 'lock' the differential in a traditional sense, but uses electronics to monitor individual roadwheel speeds across an axle, and merely applies the brake to just one wheel on that axle which is sensed to have lost traction (by rotating faster than the opposite wheel, beyond normal accepted deviations). This braked wheel has the effect of transferring the torque across the axle to the wheel which is deemed to still have traction.
Standard brakes on the RS6 consist of cross-drilled, radially vented and floating iron discs, the front discs sized at 390 millimetres (15.35 in) in diameter by 36 mm (1.417 in) thick, and the rears at 356 mm (14.02 in) diameter by 28 mm (1.102 in). The front discs are clamped by gloss black six-piston fixed Brembo monoblock alloy calipers incorporating the "RS" logo, and black single-piston floating calipers, with integrated electro-mechanical parking brake linkage actuating on the rear discs. This electro-mechanical parking brake serves another purpose, it doubles as a full emergency brake whilst the car is in motion, by applying maximum braking effort to all four wheels, resulting in activating the Anti-lock Braking System (ABS).
Optional "Audi ceramic" Carbon fibre-reinforced Silicon Carbide (C/SiC) composite front brakes are available, only with 20 inch roadwheels, which use 420 mm (16.54 in) diameter by 40 mm (1.575 in) thick drilled, vented, and floating SGL Carbon composite discs, with grey painted eight-piston fixed Alcon monobloc alloy calipers with the "Audi ceramic" logo.
Irrespective of the type of disc construction, all brake discs are mounted via high strength steel mounting pins which connect the 'working' surface of the disc to lightweight alloy disc hubs.
A specifically 'tuned' "sport-biased" Bosch ESP 8.0 Electronic Stability Programme is standard, and includes Anti-lock Braking System (ABS) and Electronic Brakeforce Distribution (EBD), and Brake Assist (BA). This ESP system has three user-selectable settings: "ESP-on" - the standard default full protection mode, "ESP-sportmode" (which turns off the ASR and EDL traction functions), and "ESP-off" (which fully disables all 'stability' and 'traction' related functions).
Standard roadwheels (in the UK) are 9.5Jx20 inch '5-segment-spoke' design alloy wheels running on 275/35 ZR20 102Y XL (eXtra Load) tyres (rated at 850 kilograms (1,874 lb) per tyre), with official supplies being either Pirelli P-Zero Rosso or Dunlop SP SportMaxx GT. A no-cost optional 9.5Jx20 '7-arm double spoke' design (identical style to B7 RS4), or 9Jx19 inch '10-spoke' design alloys with 255/40 ZR19 Michelin Pilot Sport PS2 tyres
The official details for the new Audi A6 aren’t even cold yet and already we are hearing ripples of rumors about different versions of the luxury sedan. It’s only natural that the company will follow the A6 with an S and RS (Renn Sport) version for it, so these rumors are more fact than fiction. However, while the RS version won’t be unveiled until about another two years, many people are too geeked up about it to wait that long, and this fresh rendering is proof of that.
Audi rs6
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