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

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.

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

Doonan and his team also need to be sensitive to the grassroots history of the event and the vision that IMSA founders John and Peggy Bishop had when they set the groundwork for the series more ...

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.

Should General Motors be handed entries for WTR and AXR, that would mean four V-Series.Rs will line up on the grid ... in time for Watkins Glen with our IMSA car, so I’ve bought a second chassis.

McLaughlin will be in the No. 6 Porsche 963 alongside the already confirmed trio of Matt Campbell, Mathieu Jaminet and Kevin ...

Earl Bamber, who will compete in a Cadillac V-Series.R at the Rolex for Whelan Racing, is one of three drivers who will compete in both IMSA and the World Endurance Championship this year.

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 ...

RS1 will start the BMW M Endurance Challenge at Daytona from pole position after Luca Mars led a Porsche 1-2 in qualifying for the IMSA Michelin Pilot Challenge season opener. Mars steered the No. 28 ...

Racing fans will have to wait a little bit longer for the Rolex 24 later this month. But the Roar Before the Rolex 24 is set for this weekend.

Should General Motors be handed entries for WTR and AXR, that would mean four V-Series.Rs will line up on the grid ... in time for Watkins Glen with our IMSA car, so I’ve bought a second chassis.