Starting at this weekend's Rolex 24, more classes — and cars — will use special sensors to help IMSA maintain an even playing field. Here's how they work.

GTP and GT classes will see an additional variable added into the equation meant to even out the performance playing field.

It’s a great time to be a professional sports car driver.

The Michelin Pilot Challenge race at Daytona International Raceway features eight different teams in which family members ...

NBC Sports will present more than 160 hours of IMSA coverage in 2025, headlined by the IMSA WeatherTech SportsCar ...

While Field’s last start in IMSA-sanctioned competition came in 2011 with his own team, the Ohio native made a racing comeback in Radical Cup North America and also took part in last year’s HSR ...

All WeatherTech SportsCar Championship GTD PRO and GTD cars are competing with torque sensors attached to their rear axles ...

NBC Network Schedule Features 63rd Rolex 24 At Daytona on Jan. 25-26, Monterey Race on May 11, Six Hours of The Glen on June ...

When the alarm goes off on race day morning, the longest day of the season begins. Michelin engineers arrive at the track around 8:00 a.m. After a team meeting and pre-race ceremonies, the race ...

An unofficial one, of course. Really, the IMSA WeatherTech Sportscar Championship 2025 schedule kicks off Saturday and Sunday with the 24 Hours of Daytona race at Daytona International Speedway.

A little chill, but the sunshine more than made up for it. IMSA WeatherTech Championship race cars hit the track for the first time Friday morning, kicking off a three-day testing window.

NBC Sports begins its coverage of the 2025 IMSA WeatherTech SportsCar Championship season with comprehensive live coverage of ...