Technical Specifications
| Brand | Audi |
| Model | S8 |
| Generation | S8 (D2) |
| Type (Engine) | 4.2 V8 32V (340 Hp) quattro |
| Start of production | 1996 |
| End of production | 1998 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (economy) – urban (NEDC) | 20.8 l/100 km (11.3 US mpg, 13.6 UK mpg, 4.8 km/l) |
| Fuel consumption (economy) – extra urban (NEDC) | 10.5 l/100 km (22.4 US mpg, 26.9 UK mpg, 9.5 km/l) |
| Fuel consumption (economy) – combined (NEDC) | 14.3 l/100 km (16.4 US mpg, 19.8 UK mpg, 7 km/l) |
| CO2 emissions (NEDC) | 340 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.5 sec |
| Acceleration 0 – 62 mph | 5.5 sec |
| Acceleration 0 – 60 mph | 5.2 sec |
| Maximum speed | 250 km/h (155.34 mph), Electronically limited |
| Emission standard | Euro 2 |
| Weight-to-power ratio | 5.1 kg/Hp, 197.7 Hp/tonne |
| Weight-to-torque ratio | 4.2 kg/Nm, 238.4 Nm/tonne |
| Power | 340 Hp @ 6600 rpm |
| Power per litre | 81.5 Hp/l |
| Torque | 410 Nm @ 3500 rpm (302.4 lb.-ft. @ 3500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | AHC |
| Engine displacement | 4172 cm3 (254.59 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 84.5 mm (3.33 in.) |
| Piston Stroke | 93 mm (3.66 in.) |
| Compression ratio | 11.6:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 7.5 l (7.93 US qt | 6.6 UK qt) |
| Coolant | 11 l (11.62 US qt | 9.68 UK qt) |
| Kerb Weight | 1720 kg (3791.95 lbs.) |
| Max. weight | 2320 kg (5114.72 lbs.) |
| Max load | 600 kg (1322.77 lbs.) |
| Trunk (boot) space – minimum | 525 l (18.54 cu. ft.) |
| Fuel tank capacity | 90 l (23.78 US gal | 19.8 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (8%) | 2100 kg (4629.71 lbs.) |
| Permitted trailer load with brakes (12%) | 1900 kg (4188.78 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 5034 mm (198.19 in.) |
| Width | 1880 mm (74.02 in.) |
| Width including mirrors | 1973 mm (77.68 in.) |
| Height | 1420 mm (55.91 in.) |
| Wheelbase | 2882 mm (113.46 in.) |
| Front track | 1587 mm (62.48 in.) |
| Rear (Back) track | 1579 mm (62.17 in.) |
| Drag coefficient (Cd) | 0.29 |
| Minimum turning circle (turning diameter) | 12.3 m (40.35 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives permanently the four wheels of the vehicle. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 6 gears, manual transmission |
| Front suspension | Independent multi-link suspension, Transverse stabilizer |
| Rear suspension | Independent on trapezoidal lever, Transverse stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 245/45 R18 |
| Wheel rims size | 8J x 18 |
The Audi S8 (D2), produced between 1996 and 1998, represented a significant step forward for Audi’s performance sedan offerings. Positioned as the flagship of the Audi lineup, the D2 S8 was the first S8 model, building upon the foundations of the Audi A8 (D2) luxury sedan. It distinguished itself through a high-performance 4.2-liter V8 engine, standard quattro all-wheel drive, and a subtly aggressive aesthetic. The D2 S8 was primarily marketed in Europe and North America, appealing to buyers seeking a blend of luxury, performance, and technological innovation. This particular variant, equipped with the 4.2 V8 and a six-speed manual transmission, was the original configuration offered, setting the standard for subsequent S8 generations.
Powertrain & Engine Architecture
The heart of the D2 S8 is the 4.2-liter, 32-valve V8 engine, designated as the AHC code. This engine is a naturally aspirated powerplant, featuring a 90-degree V-angle for optimal balance. It utilizes a cast iron block with aluminum cylinder heads, a configuration chosen for its durability and relatively lightweight construction. Fuel delivery is managed by a Bosch Motronic multi-port fuel injection system, precisely metering fuel into each cylinder. The engine’s valvetrain employs double overhead camshafts (DOHC) with four valves per cylinder, maximizing airflow and contributing to its high-revving nature. The six-speed manual transmission, a Getrag unit, was specifically chosen to handle the engine’s substantial 340 horsepower and 302 lb-ft of torque. This transmission offered precise shifts and a direct connection to the drivetrain, enhancing the driving experience.
Driving Characteristics
The D2 S8 with the manual transmission delivers a thrilling driving experience. Acceleration from 0 to 60 mph takes approximately 5.2 seconds, and it can reach a electronically limited top speed of 155 mph. The quattro all-wheel-drive system provides exceptional traction, particularly in adverse weather conditions. The manual gearbox allows for complete driver control, enabling precise gear selection and maximizing the engine’s power band. Compared to later S8 models with automatic transmissions, the manual version feels more engaging and responsive. The gear ratios are well-matched to the engine’s characteristics, providing strong acceleration in all gears. While not as overtly sporty as some contemporary rivals, the S8 offers a refined and powerful driving experience, blending performance with luxury.
Equipment & Trim Levels
The D2 S8 came generously equipped as standard. Interior features included leather upholstery, power-adjustable front seats with memory function, a premium sound system, and automatic climate control. Exterior features included alloy wheels, a subtle rear spoiler, and unique S8 badging. Optional extras included a sunroof, upgraded leather options, and a navigation system. The interior design was understated yet elegant, focusing on quality materials and craftsmanship. The S8’s trim level was essentially a single, fully-equipped specification, with options allowing for personalization.
Chassis & Braking
The D2 S8’s chassis is based on the Audi A8 platform, but with significant enhancements to improve handling and stability. The suspension features independent multi-link setups at both the front and rear, along with transverse stabilizer bars to reduce body roll. Braking duties are handled by ventilated disc brakes on all four wheels, coupled with an Anti-lock Braking System (ABS) for enhanced stopping power and control. The suspension tuning is geared towards providing a comfortable ride while maintaining a secure and planted feel during spirited driving. The steering is a hydraulic rack-and-pinion system, offering precise and responsive control.
Market Reception & Comparison
The D2 S8 was generally well-received by automotive critics, who praised its performance, handling, and luxurious interior. However, its relatively high price tag and fuel consumption were noted as potential drawbacks. Compared to other high-performance sedans of the era, such as the BMW M5 and Mercedes-Benz E50 AMG, the S8 offered a unique blend of all-wheel-drive traction and understated elegance. Fuel economy, at around 16.4 US mpg combined, was typical for a V8-powered performance car of the time, but significantly lower than more fuel-efficient alternatives. Reliability was generally good, although the complex engine and electrical systems could require costly repairs.
Legacy
The D2 S8 established the S8 as a benchmark for high-performance luxury sedans. Its combination of power, all-wheel drive, and sophisticated technology paved the way for future generations of the S8. Today, the D2 S8 is a sought-after classic car, appreciated by enthusiasts for its unique character and driving experience. The 4.2-liter V8 engine, while requiring regular maintenance, is known for its durability and tunability. Well-maintained examples command a premium in the used car market, representing a significant piece of Audi’s performance heritage. The D2 S8 remains a testament to Audi’s engineering prowess and its commitment to creating exceptional automobiles.







