Corvette engineers at GM say their race cars in the IMSA GTD Pro class have a closer ... Mercedes-AMG—competing in GTD Pro are light years ahead of the Detroit-derived stock cars of the 1960s ...

BMW M Team RLL finished 1-2 in the first practice for the IMSA WeatherTech SportsCar Championship at Long Beach, on a cool morning that started under a light ... even session leader Van der ...

The first 60 minutes and last two hours will air on NBC. USA, IMSA.TV and YouTube will share the middle portions. After that, IMSA, NASCAR’s sports-car cousin, will hibernate for six weeks.