V8
Audi V8 quattro Evo DTM (1991)
Audi returned to the DTM for 1991 with a slightly updated V8 quattro Evo. Hans Joachim Stuck would lead the squad with the #1 car, though a young upstart new to the Audi brand if not the series was Frank Biela.
Audi V8 quattro DTM (1990)
Having had quattro deemed an "unfair advantage" and thus outlawed in Trans-Am in 1988 and IMSA GTO racing in 1989 for its on-track dominance, Audi Sport turned to the German DTM series.
Audi V8 Avant 3.6 prototype (1989)
Built at the insistence of Ferdinand Piëch as a fully functional, road-approved family car for his wife Ursula Piëch, it remains one of the most unusual and storied vehicles ever produced by the brand.