October 10-12, 2025
Thunderhill Raceway Park – Willows, CA
Note: This is not a spectator event
Thunderhill Raceway Park
Thunderhill Raceway Park is located in Willows California. The longest permanent road course in the United States, the circuit is a fast, technical driver’s track that features lots of run-off room, 15 turns and 200 feet of elevation changes.
SVRA – Vintage Racing
The Sportscar Vintage Racing Association (SVRA) is the largest and one of the oldest Vintage racing organizations in the United States. Historic racing cars, restored to original racing specs with modern safety equipment for driver protection, compete on historic race tracks.
Trans Am Series
America’s Road Racing Series – The Trans Am Series presented by Pirelli offers a feast for the eyes and ears with two races featuring 70+ cars with fields populated by Mustangs, Camaros, Challengers, Corvettes and more in five classes: TA, TA2, XGT, SGT and GT
OPTIMA’s Search for the Ultimate Street Car
OPTIMA’s Search for the Ultimate Street Car is a safe, fun and high-profile national championship event for street legal performance vehicles. The challenge puts competitors through a unique blend of tests of each vehicle’s performance, street-ability and engineering workmanship.
PSSA – Prototype Sprint Series
The Prototype Sprint Series Association presented by Hankook is designed to host prototype race cars in a sprint race format at some of the most iconic road courses in America hosting a variety of Radical, Ligier, Revolution and Wolf prototypes.