Thunderhill Raceway Park is a motorsports complex located west of Willows, California, United States, in the Sacramento Valley. It is the venue for the longest automobile race in the United States, the annual 25 Hours of Thunderhill.

Thunderhill has two tracks: the original track known as Thunderhill East and a track known as Thunderhill West. The two tracks can also be combined to offer a track. Thunderhill also offers two large skid pad areas as well for drifting and car control events.

The venue is available for a wide variety of events or functions. It can be rented for racing events, lapping day events, drifting events, go kart events, driving schools, ride and drive programs, corporate events, commercials, a movie location, trade shows, weddings, receptions, swap meets etc.

San Francisco Region Properties, Inc., doing business as Thunderhill Raceway Park, is a wholly owned subsidiary of the San Francisco Region Sports Car Club of America. Thunderhill Raceway has its own board of directors and operates nearly independently, sharing only a few employees with its parent organization for administrative purposes.

History

Thunderhill Raceway Park was built in 1993 originally as a , 9-turn track. Following the closure of the Baylands Raceway in Fremont, CA, the purchase of the land and construction of Thunderhill was funded by the San Francisco Region Sports Car Club of America.

In late 1997, the track was expanded to its present-day configuration, adding six new turns, a bypass for the "cyclone" corner, and additional paved paddock space.

Thunderhill West was conceptualized in 2013 and built in 2014 as a standalone track. Connectors were made to connect the original track with the new west track to make a five-mile-long track. At the time of construction, this was the longest racetrack in California, and it gained the nickname "Thunderschleife" as a nod to the Nurburgring Nordschleife.

References

External links

Thunderhill Park Official Site Track information on RacingCircuits.info 25-Hours of Thunderhill Official Site 1tail Resource Database - Thunderhill Raceway Park