Home
Information:
The S8 featured a re-tuned, 350 PS (257 kW; 345 bhp) version of the standard 4,172 cc (254.6 cu in) 90° V8 petrol engine.
A sports-recalibrated version of the five-speed tiptronic automatic transmission (gear ratios - 1st: 3.571, 2nd: 2.200, 3rd: 1.505, 4th: 1.000, 5th: 0.804), featuring "Dynamic Shift Programme" (DSP) was standard, with European-spec. models having a six-speed manual transmission option. Torsen T-2 based quattro permanent four-wheel drive was also standard. Final drive ratio (for automatic transmission) is 3.730.
At the same time of the A8's facelift in 2001, the S8 received another 18 kW (24 PS; 24 bhp), taking the output of the engine to 268 kW (364 PS; 359 bhp) at 7000 rpm, and torque 430 N·m (317 ft·lbf) at 3400 rpm. This was the first model to be introduced to the North American market.
D2 suspension, brakes, wheels and tires
A retuned, 20 mm (0.8 in)-lowered sports suspension included a 30% stiffer spring rate and 40% more compression damping in the shock absorbers. Speed-sensitive "Servotronic" power assisted steering was also standard.
The brakes featured Bosch ABS 5.3 Anti-lock Braking System, with Electronic Brakeforce Distribution (EBD), and worked radially ventilated front discs of 345 mm (13.58 in) in diameter by 30 mm (1.18 in) thick. The rear vented discs measured 280 mm (11.02 in) by 22 mm (0.87 in). From 2002, an upgraded Bosch ESP 5.7 Electronic Stablilty Programme became standard fitment.
Standard alloy wheels were 8Jx18" cast aluminium alloy "Avus" 6-spoke style, with 245/45ZR18 performance tyres. In 2003, 8Jx18" polished 9-spoke RS wheels became a no-cost option road wheel.
D2 body and interior
Whilst the S8 shared the aluminium monocoque of the A8, subtle detail included solid aluminium alloy door mirror housings, chrome-effect beltline and lower front grille trim, and polished twin exhaust pipes, along with subtle "S8" badging. 14-way power adjustable and heated sports front seats with memory function compliment heated rear seats.