Having attended both F1 and IMSA races, I found some distinct differences, and you might be surprised at what I discovered.

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 France, CEO Ed Bennett and president John Doonan their flowers. "They came ...

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 ...

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 ...

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 ...

The Rolex 24 win adds to Team Penske's recent string of successes, including the 2024 IMSA GTP title, back-to-back ...

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

Four hours into the 24 Hours of Daytona and three hours after their lone GTP entry retired, Lamborghini's leaders sat down to discuss the program's future with the press, including Road & Track.

It's also the only production-based car in IMSA GTP, the only car with a V-12 in either series, and the only car built by a major manufacturer without a hybrid system in either category.

The Hypercar field for the 2025 running of the Le Mans 24 Hours in June could receive a significant boost from IMSA's GTP field it seems, as multiple teams are making requests for spaces on the grid.

with the IMSA GTP Hybrid Electrified Race Car, at Action Express Racing to learn about physics and engineering. “What we’re doing here is a laboratory. It’s a laboratory for the automakers. It’s a ...