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 additional ...

BMW has made an interesting innovation with the manufacturing of the rear wing on its M Hybrid V8 IMSA GTP car as RACER’s Marshall Pruett reveals. The 2024 season marks Marshall Pruett's 38th year ...

“We’re thrilled to continue our long-standing relationship with Cadillac and Action Express Racing in the IMSA GTP class,” said Sonny Whelen, Executive Vice President of Whelen Engineering.

The first sprint race of the new Grand Touring Prototype (GTP) era for the IMSA WeatherTech SportsCar Championship produced ... Sure enough, the Porsches began experiencing significant rear tire wear ...

Grand Touring Prototype (GTP) is the pinnacle of endurance racing in IMSA. Hear as drivers explain the finer details of their class as Leigh Diffey highlights the prominent names and teams to know ...

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 ...