The regulations are different but the same M3 GT cars were used in ILMS. Also, even the ALMS BMW Rahal team drivers were selected to drive those cars.
The races are short but still a lot of fun and not as short as the F1 races. Plus, the 12 hr race gives you a fun very long endurance race.
Originally Posted by blipit
24 hours of Le Mans is not really related to ALMS. It is run by the AOC. And most of the ALMS teams don't even go over there to race. The BMW team at 24 Le Mans is not the Rahal team. Regulatons are different between the two.
There is the 12 hours of Sebring and Petit Le Mans. Otherwise ALMS races are 2 -2:45 hours long. Far from endurance racing.
It is basically regular old sports car racing with a couple half Le Mans races thrown in the mix.