The American Le Mans Series is a series of North American sports car races based on the 24 Hours of Le Mans, the world’s most famous endurance race.  American Le Mans Series races feature four classes of race cars competing for class wins and the overall win, with the fields including many of the same drivers and cars that compete at Le Mans. Former Formula One stars such as Stefan Johansson, Johnny Herbert and David Brabham compete in the series, as do well-known North American stars such as Ron Fellows, Butch Leitzinger and Bryan Herta.