Four chassis with backbones from different race car manufacturers. Three different approaches to engines. Vastly different software engineering and styling.
He pole-sitting No. 31 Whelen Engineering Racing Cadillac V-Series.R won Saturday’s Mobil 1 Twelve Hours of Sebring at the historic Sebring International Raceway.
Friday’s midday practice session for the IMSA WeatherTech SportsCar Championship offered most of the 61 entries in the Rolex 24 At Daytona their last chance.