GT Class 1990 and newer, 3200lbs and up, sedans, 4 seater coupes, pickups
GTS Class 1990 and newer, 3200lbs and up, 2 seater, any or all wheel drive
GTV Class 1989 and older, 3200lbs and up, rear wheel drive
GTL Class All Vehicles Under 3200lbs
EC Class – Exibition Only