Group A - Touring CarsGroup C - Touring CarsGroup N - Touring CarsGroup S - Production Sports CarsFormula JuniorGroup JKL - Vintage & Historic Sports and Racing CarsGroup M & O Sports & RacingFormula 5000Group Q & R - Historic Racing and Sports Racing CarsFormula OneIndy, CART & CHAMP CarsCan-Am & Sports CarsHistoric Touring Cars