The 2006 American Le Mans Series specification Audi R8 LMP1 represented the final competitive evolution of one of the most successful endurance racing cars ever built.
The Audi A4 quattro Super Touring, also known as the Audi A4 STW, is a racing version of the first-generation Audi A4 (B5) developed for the FIA Class 2 / Super Touring regulations.
