Acura won Motul Petit Le Mans, but it was Cadillac's day.After 10 hours, Pipo Derani and Alexander Sims claimed the first Drivers Championship of GTP's new era in the IMSA WeatherTech SportsCar Championship, and Whelen Engineering Cadillac Racing took the team trophy. On the strength of a 12 Hours of...

With three different cars across two series, General Motors is a key part of IMSA racing. Cadillac has the bulk of entries in the IMSA WeatherTech SportsCar Championship DPi class, with cars in the hands of three teams and holds the top two spots in the drivers and team championships;...