LMP900 (Le Mans Prototype) or SR1 (Sportsracing 1): most powerful open top
cars, such as the Panoz, Ferrari 333, Lola etc
LMP675 or SR1 less powerful open top cars, suchs as Tampoli, Pilbeam etc,
Lola light chassis etc
GT-1: Closed prototypes, such as the new Bentley
GT-2 : powerful cars that are based upon production cars, such as Chrysler
Viper, Porsche 911 GT2, Corvette, Lister Storm
GT-3 or GTS or N-GT: almost production cars such as Porsche 993, BMW M3 etc.
grtngs,
hgrm