The 1989 Audi 90 Quattro IMSA GTO, featuring a legendary 2.2-litre turbocharged 5-cylinder engine, remains one of the most iconic race cars ever built. With its explosive acceleration, distinctive ...

The GTO was slowly but surely losing traction in the American automotive space, mainly as the market was migrating to smaller and more efficient engines. Compact cars were suddenly more appealing, so ...