Audi A6 the larger Audi Q7, but air suspension is an expensive option in the Q7. In its native country, Germany, it cost a few hundred Euros less than the Q7. In 2005, the A6 won the "World Car of the Year" award, and has also won the "Practical Caravan" "Towcar of the Year" awards, due to its array of towing features such as adjustable suspension height and damping, and the presence of a 123 Trailer Stability Programme. Audi unveiled a facelifted "C6" Audi A6 on 12 August 2008, at the Moscow International Motor Show. The refresh incorporates some modern Audi design
Audi its replacement for 2006, called the Audi R10 TDI, was unveiled on 13 December 2005. The R10 TDI employed many new and innovative features, the most notable being the twin-turbocharged direct injection diesel engine. It was first raced in the 2006 12 Hours of Sebring as a race-test in preparation for the 2006 24 Hours of Le Mans, which it later went on to win. Audi had a win in the first diesel sports car at 12 Hours of Sebring (the car was developed with a Diesel engine due to ACO regulations that favor diesel engines). As well as winning