Cadillac and Porsche lead a trio of championships
Cadillac leads the IMSA WeatherTech SportsCar Championships GTP while Porsche leads the IMSA Michelin Endurance Cup GTP ahead of Road America.
FIA WEC, ELMS, GT, IMSA, NASCAR
Car Racing Reporter featuring endurance races in Austin, Daytona, Imola, Le Castellet, Le Mans, Monza, Nürburgring, Petit Le Mans, Portimao, Phoenix, Sebring, Silverstone, Spa-Francorchamps, Talladega, The Glen following victories of Acura, Audi, Aston Martin, Cadillac, Ferrari, Ford, Porsche, Toyota in ELMS, FIA WEC, GT, IMSA, NASCAR.