Audi S6

Audi S6

The latest Audi S6 quattro model (Typ 4F) was introduced at the 2006 North American International Auto Show in January. It is based on the current C6 Audi A6, and uses the Volkswagen Group C6 platform, and is available in saloon/sedan and Avant (estate/wagon) bodystyles.

Powertrain

The C6 S6 features an all aluminium alloy 5,204 cc (317.6 cu in) Fuel Stratified Injection (FSI) 40-valve V10 petrol engine, derived from the Lamborghini Gallardo, re-tuned to produce 320 kW (440 PS/430 bhp) at 6800 rpm and 540 N·m (400 ft·lbf) of torque between 3000 - 4000 rpm. It utilises twin chain-driven double overhead camshafts (DOHC), and variable valve timing for both intake and exhaust valves.

The same engine is used in the Audi S8, where it develops 331 kW (450 PS/444 bhp).

A six-speed tiptronic automatic transmission (gear ratios - 1st: 4.171, 2nd: 2.340, 3rd: 1.521, 4th: 1.143, 5th: 0.867, 6th: 0.691), with steering wheel-mounted "paddle-shifers" is the only transmission available. Torsen-based quattro permanent four-wheel drive, and from 2007 model year with the latest 40:60 front:rear asymmetric/dynamic Torsen T-3 differential, are standard. The final drive ratio is 3.801, and traction is assisted "Electronic Differential Lock" (EDL) and "Anti-Slip Regulation" (ASR) (commonly known as traction control system).

For the sprint to 100 km/h (62 mph), the S6 takes 5.2 seconds, with the quarter mile passing in 13.5 seconds.

Brakes, wheels and tyres

The brakes consist of radially ventilated discs front and rear. The fronts are sized at 385 mm (15.16 in) in diameter, and the rears at 330 mm (12.99 in). An electro-mechanical parking brake works on the rear.

A Bosch ESP 8.0 Electronic Stability Programme, with Anti-lock Braking System (ABS), brake assist, and Electronic Brakeforce Distribution (EBD) completed the brake system.

Standard alloy wheels consist of 9Jx19" cast aluminium alloy "5-arm wing design", shod with 265/35ZR19 tyres. An optional 8½Jx18" cast alloy "S design" with 255/40ZR18 tyres are also available. A direct-acting tyre pressure monitoring system is also standard.

Other features
The S6 features a row of 5 distinctive LED daytime running lamps (DRLs) along the bumper as a point of differentiation from other A6 models. Bi-Xenon HID adaptive headlights which swivel around corners compliment the LED DRLs.