This four door Wagon is offered in one trim level – the Avant Quattro AWD. The 2003 Audi S6 comes equipped with a 340 horsepower 4.2-liter V8 with a 5-speed overdrive-enabled automatic transmission as standard. The S6 is extremely versatile, offering seating capacity for up to five and plenty of cargo room. The S6 boasts a long list of safety features, including front/side-body/side-head airbags, ABS brakes, traction control, park assist, child safety rear door locks and an emergency trunk release. Luxury amenities include lumbar seats and a navigation system.