NASCAR and IMSA sports-car racing. They each won five. In earlier years, Porsche dominated the Rolex with racing versions of its famed street car — the 911. Last year, a Porsche-backed prototype ...

Increased opportunities are part of the rising tide created by the convergence of hybrid prototype rules between IMSA and the World Endurance Championship. The demand for drivers is fueled in part ...

Porsche boasts the mosts overall wins by far ... and both can compete in either WEC or IMSA. Le Mans Daytona h (LMDh): LMDh regulations mandate that a chassis must be built by one of four licensed ...

Nasr and his Porsche Penske teammates will need to stay as sharp during their title defense this weekend. After employing four drivers on each of its entries last year (anticipating a mandate that ...

Having attended both F1 and IMSA races, I found some distinct differences, and you might be surprised at what I discovered. F1 cars are built to go insanely fast and are incredibly nimble.

Porsche Penske Motorsport will run NTT IndyCar Series stars Josef Newgarden and Scott McLaughlin in the team’s pair of Porsche 963s in next week’s IMSA-sanctioned test at Sebring International ...

The first 60 minutes and last two hours will air on NBC. USA, IMSA.TV and YouTube will share the middle portions. After that, IMSA, NASCAR’s sports-car cousin, will hibernate for six weeks.