The European assault began with the spectacular Group B machinery, then continued with ever more outlandish machinery that piled on the power, aero and tech in the thin Colorado air.

For Audi of America, racing in the 1988 Trans-Am series with the all-wheel drive 200 was a chance to rebuild a tarnished reputation by kicking some all-American V8 butt.This story is an excerpt from RACER magazine's GREAT CARS III ISSUE, on sale now.If necessity is the mother of invention, then...

Three-time Le Mans 24 Hours winner Andre Lotterer will drive an Audi 90 quattro IMSA GT car at the Goodwood Festival of Speed. The Audi driver, who notched up his third Le Mans victory with Benoit Treluyer and Marcel Fassler last weekend, will be fulfilling a long-held ambition when he...