sentences:  As of the end of 2018 the 1991 edition is still one of the fastest races in the history of this event, being the sixth fastest.For Group 3A cars of 3001cc and Over engine capacity, it featured the turbocharged Nissan Skylines, Ford Sierras, Toyota Supras and a Mitsubishi Starion, the V8 Holden Commodores and a BMW 635 CSi.For Group 3A cars of 1601-3000cc engine capacity, it was composed exclusively of BMW M3s, both the 2.5 L "Evo" version and the original 2.3 L car.