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 ...

It was Penske’s 42nd win in IMSA and only the second time in IMSA ... up in a Ford family and spent many hours holding a trouble light over a straight-six miraculously fed by a single-barrel ...

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.