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

Today’s IMSA GTP machines, also known as LMDh cars, are some of the most hardcore hybrids out there. From a stop in pit lane, GTP cars accelerate entirely on battery power, leaving only the ...

There wasn’t any trophy or prize money on the line in IMSA-sanctioned testing at Sebring International Raceway on Tuesday, ...