From the unmistakable shrill howl of the four-rotor 1991 Mazda RX-7-001 GTO to the thundering Chevrolet V-8 growl of a 1985 ...

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 ...

whose company is preparing to build new cars to race in IMSA's top GTP class, lined up to give the series led by chairman Jim ...

Multiple GTP manufacturers have voiced concerns over the number of high-voltage related issues that have occurred in the ...

GTP and GT classes will see an additional variable added into the equation meant to even out the performance playing field.

Can you tell the differences between the two prototypes in the Rolex 24? How about GTD and GTD Pro? This might help. Or might ...

IMSA President John Doonan said this weekend at Daytona International Speedway that 89 cars applied for entry into this ...

Porsche Penske Motorsport begins its begins its GTP title defense this weekend at the Roar Before the 24, a year on from its ...

IMSA arranged for 27 high school students who excel in STEM programs to come to the speedway to educate the teens on how many ...

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 ...

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 ...