IMSA Michelin Pilot Challenge

The IMSA Michelin Pilot Challenge is IMSA's premier production-based support championship, racing on the same weekends as the WeatherTech SportsCar Championship at circuits such as Daytona, Sebring, Watkins Glen and Road Atlanta. Grand Sport (GS) class GT4 cars headline alongside the touring-car class in two- and four-hour endurance races, serving as the main development step toward the WeatherTech championship.