From the showroom to the speedway, the IMSA Michelin Pilot Challenge is IMSA’s showcase for the latest in American-made and imported high performance sports cars, coupes and sedans straight from the dealer showroom floor. With modifications permitted only in the area of safety and competition, the Michelin Pilot Challenge is home to the same cars seen on streets and highways around the world every day. Racing takes place in two classes, Grand Sport (GS) and Touring Car (TCR) with the series running a 10-race schedule in tandem with the IMSA WeatherTech SportsCar Championship.
Series Website : https://www.imsa.com/michelinpilotchallenge/
