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

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 ...

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 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.

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 ...

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

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 ...

IMSA Classic Saturday morning at the 63rd Rolex 24 At Daytona truly offered race fans and competitors alike a period-correct ...

Unusual shows of passion, non-traditional viewing platforms added up to a winning Rolex 24 for the glass offices at IMSA.

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.