IMSA President John Doonan has teased further growth for IMSA’s GTP class in the coming years during today’s pre-Rolex 24 press conference. Doonan spoke directly about the potential for ...

Penske also returned to IMSA in 2017 with Acura and later switched to lead Porsche's GTP program, which won the 24 Hours of Daytona and the GTP championship last year. Like Brown and McLaren ...

This is the marquee class in IMSA’s WeatherTech Championship Series ... These prototypes are simpler machines compared to GTP, though similar to the untrained eye. Unlike the GTPs, the LMP2 ...

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.

Pipo Derani was "a bit surprised" to win pole for the Twelve Hours of Sebring and discusses how having control of the race start affects his outlook for the main event.