It was available with a range of inline-5 and V8 engines.
The 4.2L V8 engine produced 275 horsepower (205 kW) in the S8 variant.
Top speed for the S8 was electronically limited to 155 mph (250 km/h).
The A8 D2 had a curb weight of approximately 1,840 kg (4,046 lbs).
It featured Audi's Quattro all-wheel drive system with Torsen center differential.
The car had an 11-inch (280 mm) ventilated disc brake at the front and 12.2 inches (310 mm) ventilated disc brakes at the rear.
The A8 D2 was offered in both long wheelbase (LWB) and short wheelbase (SWB) versions.
It had an interior space of 4.37 meters (14.3 feet) in length, 1.93 meters (6.3 feet) in width, and 1.42 meters (4.7 feet) in height.
The car's front suspension featured MacPherson struts with a stabilizer bar.
It was equipped with an electrically operated sunroof as standard equipment on most variants.
A range of interior materials were available including leather, Alcantara, and wood trim options.
In some markets, the S8 had 18-inch (457 mm) forged aluminum alloy wheels.
The car featured a CD changer with six-disc capacity in certain models.
It was possible to order the A8 D2 with a range of advanced audio systems including a 12-speaker system and a 6-CD changer with a built-in amplifier.
The V8 engine variants produced up to 235 pounds-feet (318 Nm) of torque.
Audi's adaptive headlight system, known as 'Auto-Leveling Headlights', was optional on some A8 D2 models.
Some trim levels offered heated rear seats with massage function.
On the S8 variant, a driver-controlled electronic throttle valve with traction control and anti-lock braking system (ABS) were fitted.
The car's body featured 80% of high-strength steel.
In certain markets, a limited-edition version of the A8 D2, known as the 'Audi V12' was produced, featuring a 6.0L W12 engine producing 420 horsepower (313 kW).
The S8 had front sport seats with adjustable lumbar support and lateral adjustment.
Audi's 'Dynamic Ride Control' system featured on some A8 D2 variants allowed for automatic electronic damping of the suspension.
Some trim levels offered an optional rear air suspension to further improve ride comfort and handling stability.
The S8 variant had a top speed limiter set at 155 mph (250 km/h) but was reported to reach speeds up to 186 mph (299 km/h) when this limiter was disabled.