Audi developed a race version of their 90 sedan to compete in the 1989 IMSA GTO series. The car featured a tubular space frame and a 2.2L turbocharged 5-cylinder that made over 700hp. It featured Audi's famed Quattro all-wheel drive system and was driven by Hurley Haywood, Hans-Joachim Stuck, Walter Rörhl and Scott Goodyear. After an inco
