Top Gear's guide to the Audi 90 Quattro IMSA GTO

But the power of the race series that inspired its name will never be undone. Founded in 1966, two different classes of modified road cars were the original combatants; the first race was held at Sebring, and was won by Jochen Rindt in an Alfa Romeo GTA (a combo that’s about as far from Burt Reynolds and a Pontiac as you can imagine). By 1970, it was pretty much the playground for America’s ‘pony cars’, with stellar names like Mark Donohue, Sam Posey, Dan Gurney and Roger Penske all involved. Over the years, Trans-Am morphed into a silhouette formula, and by 1988 an unlikely championship contender had arrived in the shape of the Audi 200.