Almost since the very first day a Radical first turned a wheel in America, Jeff Shafer has been involved. From running the original ‘Radical Cup’ series to a 12-year ‘David and Goliath’ pursuit of an outright win in the NASA 25 Hours of Thunderhill with Radical machinery, to helping to...

Race teams have once again taken on the challenge of racing twice around the clock plus an hour in the chill of Northern California December. Just finishing the NASA 25 Hours of Thunderhill is an accomplishment, let alone winning. Two Mazda teams emerged victorious in their classes during the Dec....

The Toyo Tires/Flying Lizard Motorsports team took its third consecutive overall win in the NASA 25 Hours of Thunderhill presented by Hawk Performance on Sunday, marking only the second time in the endurance race's 15-year history that a team has won three overalls in a row.The Audi R8LMS took the...

Entering the home stretch of the NASA 25 Hours of Thunderhill presented by Hawk Performance, the Toyo Tires/Flying Lizard Motorsports Audi R8LMS retook the lead early Sunday as the team looks to bring home the victory in the endurance race.The Audi R8LMS recaptured the lead from Ryno Racing Team during...

The 15th running of the NASA 25 Hours of Thunderhill presented by Hawk Performance is set for this weekend at Thunderhill Raceway Park in Northern California. The twice-around-the-clock plus one-hour race is set to run Dec. 2-3, starting at 11 am Saturday Pacific Time, and can be watched via live...

The 15th running of the NASA 25 Hours of Thunderhill presented by Hawk Performance is set for this weekend at Thunderhill Raceway Park in Northern California. The twice-around-the-clock plus one-hour race is set to run Dec. 2-3, starting at 11 am Saturday Pacific Time, and can be watched via live...

NASA's 25 Hours of Thunderhill ignited the soul of Robert Davis Racing, and tests the mettle of all those who participate. See the highlight video. Read full article on MazdaMotorsports.com

For the second consecutive year, Flying Lizard Motorsports's No. 45 Audi R8 clinched overall victory in the 14th edition of the NASA 25 Hours of Thunderhill presented by Hawk Performance, held at Thunderhill Raceway Park in California.The Audi R8 LMS ultra was driven by the quartet of Darren Law, Johannes...

At the halfway mark of the 14th edition of the NASA 25 Hours of Thunderhill presented by Hawk Performance, the polesitting No. 57 Ryno Racing Ginetta was holding on to a lead it's held for most of the race.The team decided to start the No. 5 team car with Colton...

Winning any major endurance event three times in a row is tough. Winning four out of five years in a row is tougher. That's the challenge presented to El Diablo Motorsports, the Northern California-based endurance sports car team, entering next week's NASA 25 Hours of Thunderhill as defending champions in...