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

See, in both IMSA and WEC, Cadillac is the only manufacturer that opted to mate a V8 combustion engine to its hybrid powertrain. Everyone else opted for smaller engines — but it was critical ...

Since WEC and America’s IMSA SportsCar Championship joined forces ... includes entries from exceptional automakers like Porsche, Cadillac, Aston Martin, BMW, Acura, Lamborghini, Alpine, Peugeot ...

One of the fascinating storylines going into the 63rd Rolex 24 At Daytona examined just how different the 61-car grid looked to start the 2025 IMSA WeatherTech SportsCar Championship versus the end of ...