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

They got their ownership start in IndyCar, branched out into IMSA as the factory team behind Toyota's Lexus brand but were skeptical about IMSA's reach while it was hidden in the shadows cast by ...

The IMSA WeatherTech SportsCar Championship features by far the highest level of technology in American motorsport. It’s therefore no surprise that a growing number of America’s leading technology ...

This procedural change in the homologation process used by the WEC may facilitate more Hypercar entries in IMSA events. Thus far, Ferrari, Peugeot and Toyota, all built to the Hypercar rules ...

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.

Increased opportunities are part of the rising tide created by the convergence of hybrid prototype rules between IMSA and the World ... Porsche and Toyota, an era that ended 10 years ago.

Two Valkyrie Hypercars will compete in WEC, and one will compete in IMSA. Like the road car, the racer sports a 6.5-liter naturally-aspirated V12. This year’s 24 Hours of Le Mans is shaping up ...

Need a break? Play the USA TODAY Daily Crossword Puzzle. This weekend also features two IMSA VP Racing Challenge Series races. The 45-minute sprints will begin at 2 p.m. Saturday and 1:20 p.m. Sunday.

Both feature a similar base of regulations, with a few tweaks, and both can compete in either WEC or IMSA. Le Mans Daytona h (LMDh): LMDh regulations mandate that a chassis must be built by one of ...

IMSA stripped Tower Motorsports of its LMP2 class victory at the Rolex 24 at Daytona because of a technical infraction. The win was awarded to runner-up United Autosports. United is co-owned by ...