D2 (Typ 4D, 1994-2002)

In September 1994, according to the official electronic parts catalogue for the Volkswagen Group,^[1] Audi introduced the Audi S8 4.2 quattro (Typ 4D) into the European market with a six-speed manual transmission, and a year later with tiptronic five-speed automatic transmission - a high-performance version of the Audi A8 in the vein of Mercedes-Benz AMG models, sharing the A8's all-aluminium monocoque "Audi Space Frame" (ASF), and Volkswagen Group D2 platform.

At the same time of the A8's facelift in late 1999, the S8 received the same cosmetic upgrades. This was the first model to be introduced to the North American market.

Production of this original S8 ended in September 2002, shortly before the introduction of the current D3-platform A8.

The D2 S8 was also featured in the 1998 film Ronin.

D2 powertrain

Motive power in the D2 S8 powertrain featured a re-tuned, 250 kilowatts (340 PS; 335 bhp) version of the standard 4,172 cubic centimetres (254.6 cu in) 90° V8 petrol engine (parts code: 077, identification codes: AKH, AHC). From late 1999, the engine was given a further power increase to 265 kilowatts (360 PS; 355 bhp) at 7,000 rpm, and 430 newton metres (317 ft·lbf) of torque at 3,400 rpm (identification codes: AQH, AVP, AYS, BCS).

A sports-recalibrated version of the ZF 5HP24 five-speed tiptronic automatic transmission (parts code: 01L, identification codes: DYM, ECX) (gear ratios - 1st: 3.571, 2nd: 2.200, 3rd: 1.505, 4th: 1.000, 5th: 0.804), featuring "Dynamic Shift Programme" (DSP) was standard. European-market models also had a six-speed manual transmission option (parts code: 01E, identification code: DGV).

Torsen T-2 based quattro permanent four-wheel drive was also standard. Final drive ratio (for automatic transmission) is 3.730.

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