Which is the best Sportscar/Gt car. That doesnt have to be the mot succesful but it could be your favorite. In my opinion the Audi R8 is the most successful sportscar in recent times with the Bentley bein the only car to beat it at lemans in the last 4 years, and the 911 GT3 is the most successful Gt car. But my favorite Sportscar is the Porsche 962, and GT has to be the old Oreca Viper GTS-R's. Two of the most dominant racing cars of their times.