The Audi RS6 Avant (4F, C6) 5.0 TFSI V10 quattro Tiptronic represents the pinnacle of performance within the C6 generation of Audi’s high-performance wagon. Produced from November 2007 to August 2010, this variant combined a potent 5.0-liter twin-turbocharged V10 engine with Audi’s renowned quattro all-wheel-drive system and a six-speed Tiptronic automatic transmission. It was positioned as the flagship model of the RS6 range, offering a unique blend of practicality, luxury, and blistering speed. The C6 RS6 was a significant departure from its predecessor, embracing a more sophisticated and technologically advanced approach to performance.
Technical Specifications
| Brand | Audi |
| Model | RS6 |
| Generation | RS6 Avant (4F,C6) |
| Type (Engine) | 5.0 TFSI V10 (580 Hp) quattro Tiptronic |
| Start of production | November, 2007 |
| End of production | August, 2010 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (economy) – urban | 20.1 l/100 km (11.7 US mpg, 14.1 UK mpg, 5 km/l) |
| Fuel consumption (economy) – extra urban | 10.2 l/100 km (23.1 US mpg, 27.7 UK mpg, 9.8 km/l) |
| Fuel consumption (economy) – combined | 13.9 l/100 km (16.9 US mpg, 20.3 UK mpg, 7.2 km/l) |
| CO2 emissions | 331 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.6 sec |
| Acceleration 0 – 62 mph | 4.6 sec |
| Acceleration 0 – 60 mph | 4.4 sec |
| Acceleration 0 – 200 km/h | 14.6 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 3.4 kg/Hp, 290 Hp/tonne |
| Weight-to-torque ratio | 3.1 kg/Nm, 325 Nm/tonne |
| Power | 580 Hp @ 6250-6700 rpm |
| Power per litre | 116.2 Hp/l |
| Torque | 650 Nm @ 1500-6250 rpm (479.42 lb.-ft. @ 1500-6250 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | BUH |
| Engine displacement | 4991 cm3 (304.57 cu. in.) |
| Number of cylinders | 10 |
| Engine configuration | V-engine |
| Cylinder Bore | 84.5 mm (3.33 in.) |
| Piston Stroke | 89 mm (3.5 in.) |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | BiTurbo, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 8 l (8.45 US qt | 7.04 UK qt) |
| Coolant | 14 l (14.79 US qt | 12.32 UK qt) |
| Kerb Weight | 2000 kg (4409.25 lbs.) |
| Max. weight | 2600 kg (5732.02 lbs.) |
| Max load | 600 kg (1322.77 lbs.) |
| Trunk (boot) space – minimum | 565 l (19.95 cu. ft.) |
| Trunk (boot) space – maximum | 1660 l (58.62 cu. ft.) |
| Fuel tank capacity | 80 l (21.13 US gal | 17.6 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Length | 4928 mm (194.02 in.) |
| Width | 1889 mm (74.37 in.) |
| Height | 1460 mm (57.48 in.) |
| Wheelbase | 2846 mm (112.05 in.) |
| Front track | 1614 mm (63.54 in.) |
| Rear (Back) track | 1637 mm (64.45 in.) |
| Minimum turning circle | 12.2 m (40.03 ft.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 6 gears, automatic transmission Tiptronic |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Independent on trapezoidal lever |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | 255/40 R19 |
| Wheel rims size | 9J x19 |
INTRODUCTION
The Audi RS6 Avant (4F, C6) 5.0 TFSI V10 quattro Tiptronic, launched in late 2007, represented a significant leap forward for Audi’s performance estate. Built on the Audi A6 (4F) platform, also shared with the A4 and A8 of the same era, the RS6 aimed to deliver uncompromising performance without sacrificing the practicality expected of a wagon. The 5.0 TFSI V10 variant was the top-tier offering, distinguished by its powerful engine and sophisticated drivetrain. It quickly gained a reputation as a formidable all-weather performance machine, appealing to enthusiasts who demanded both speed and usability.
Powertrain & Engine Architecture
At the heart of the RS6 Avant 5.0 TFSI V10 lies the BUH engine code, a 4.991-liter (304.57 cu. in.) twin-turbocharged V10. This engine, derived from the Lamborghini Gallardo’s powerplant, produces 580 horsepower at 6250-6700 rpm and a substantial 650 Nm (479.42 lb.-ft.) of torque available from a low 1500 rpm all the way to 6250 rpm. The engine utilizes direct fuel injection (FSI) and a dual-scroll turbocharger configuration to minimize turbo lag and maximize power delivery. The valvetrain employs double overhead camshafts (DOHC) with four valves per cylinder. The six-speed Tiptronic automatic transmission, while offering smooth shifts, was a point of contention for some purists, as it lacked the direct engagement of a manual gearbox. However, it was capable of handling the engine’s immense torque and offered a degree of driver control through manual shift modes.
Driving Characteristics
The RS6 Avant 5.0 TFSI V10 delivers a truly exhilarating driving experience. The combination of the powerful V10 engine and Audi’s quattro all-wheel-drive system results in phenomenal acceleration – 0 to 60 mph in approximately 4.4 seconds and a top speed electronically limited to 155 mph. The Tiptronic transmission, while not as engaging as a manual, provides quick and seamless gear changes. The quattro system ensures excellent traction in all conditions, making the RS6 a surprisingly capable performer even in inclement weather. Compared to the standard A6 Avant, the RS6 offers a significantly firmer ride due to its sport-tuned suspension. While comfortable enough for daily driving, it prioritizes handling and stability over outright plushness. Compared to a hypothetical manual transmission version, the Tiptronic offers convenience but sacrifices some driver involvement.
Equipment & Trim Levels
The RS6 Avant 5.0 TFSI V10 came generously equipped as standard. Interior features included Valcona leather upholstery, heated and ventilated front sport seats, carbon fiber trim, and a multi-function steering wheel. Standard technology included Audi’s MMI infotainment system, a premium sound system, and parking sensors. Optional extras included adaptive cruise control, a panoramic sunroof, and upgraded interior trim options. The overall interior ambiance was one of understated luxury and high-quality materials.
Chassis & Braking
The RS6 Avant featured a specially tuned suspension system designed to handle the increased power and performance. It utilized independent multi-link suspension at the front and an independent trapezoidal lever setup at the rear. Large ventilated disc brakes were fitted on all four wheels, providing ample stopping power. The RS6 also benefited from a robust stabilizer bars to minimize body roll during cornering. The standard wheel and tire combination was 9J x 19 alloy wheels with 255/40 R19 tires, providing a good balance of grip and ride comfort.
Market Reception & Comparison
The RS6 Avant 5.0 TFSI V10 was generally well-received by automotive critics. It was praised for its incredible performance, all-weather capability, and luxurious interior. However, the Tiptronic transmission was a common point of criticism, with some reviewers preferring the engagement of a manual gearbox. Fuel economy, unsurprisingly, was poor, averaging around 16.9 US mpg in combined driving. Compared to other high-performance wagons of the time, such as the BMW M5 Touring (which wasn’t officially sold in the US), the RS6 offered a unique combination of power, practicality, and all-wheel-drive security.
Legacy
The Audi RS6 Avant (4F, C6) 5.0 TFSI V10 quattro Tiptronic remains a highly sought-after performance wagon in the used car market. The BUH engine, while complex, has proven to be relatively reliable when properly maintained. Common issues include turbocharger wear and potential oil leaks. However, with regular servicing and preventative maintenance, these engines can provide years of enjoyable performance. The C6 RS6 established a benchmark for high-performance estates, paving the way for subsequent generations of RS6 models. Its blend of power, practicality, and all-weather capability continues to appeal to enthusiasts today, solidifying its place as a modern classic.










