25 Hours at Thunderhill 2015

Thunderhill Raceway Park 5250 California 162, Willows, CA

Willows, CA – For the sixth year in a row, Davidson Racing, the road racing team based out of Sparks, Nevada owned by Bob Davidson, will participate in the longest endurance car race in the world, 25 Hours of Thunderhill. 100 percent of the Davidson Racing Team's race proceeds will be donated to the Semper Fi Fund. [...]