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

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.

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 ...

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.

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

Can you tell the differences between the two prototypes in the Rolex 24? How about GTD and GTD Pro? This might help. Or might not.