The first 60 minutes and last two hours will air on NBC. USA, IMSA.TV and YouTube will share the middle portions. After that, IMSA, NASCAR’s sports-car cousin, will hibernate for six weeks.

Burnham's IMSA-inspired Vega is a radical departure from ... host Mike Musto gets the full story about Mike Cosculluela's 1969 Chevy Nova, which left quite an impression more than 40 years ago.

The IMSA grid for 2025 is filled to brim with new teams, returning faces and expanding classes as excitement begins to brew for next year. The 2025 IMSA WeatherTech SportsCar Championship full ...

Courtesy of IMSA The International Motor Sports Association (IMSA) is having a moment. Buried for decades behind bigger and more-popular racing series, the Florida-based IMSA series is fighting ...

Having attended both F1 and IMSA races, I found some distinct differences, and you might be surprised at what I discovered. F1 cars are built to go insanely fast and are incredibly nimble.

IMSA president John Doonan says that GTP manufacturers tell him they want to hire American drivers, but where will those drivers come from? Being elbowed out by drivers who get their training in ...

The winning overall team in this year’s Rolex 24 At Daytona was hammered by sanctioning body IMSA on Wednesday for major rules infractions. Meyer Shank Racing will be able to keep the victory ...