The prototype classes in the World Endurance Championship and IMSA WeatherTech SportsCar Championship have more differences ...

At a time when many racing series' growth is flat, IMSA is adding manufacturer after manufacturer, and fans are lining up to watch the on-track action.

Honda has made a big change to its IMSA program for 2025 which affects everything it does on and off the track, and could ...

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

As if in anticipation of only nine GTP finishers in the Rolex 24, IMSA President John Doonan said additional GTP cars are in the pipeline. He referred to McLaren and Ford by their respective ...

Last week, ahead of the annual Rolex 24 at Daytona and the start of the North American road racing season, IMSA (the sport's ...

Arguing against that, however, was a strong relationship with IMSA, greater visibility ... want to make good race cars. Due to the complexity of a hybrid prototype, a GTP program can never look ...

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

He hopes the next-generation IndyCar chassis and engine formula can stoke the same interest the hybrid GTP cars have delivered for IMSA. Meyer Shank heads up Acura's factory effort in IMSA in 2025.