1991 Audi V8 quattro Evo DTM georgeachorn·March 30, 1991Audi 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.Race CarsTouring Cars·0 Comments·0