National Auto Sport Association

25 Hours of Thunderhill Complete

The fifth annual running of the United States Air Force 25 Hours of ThunderhillTM came to a close on Sunday, December 2, 2007 after over a day's worth of severe endurance racing. The event saw 72 teams enter with 67 of them taking the green flag at the Thunderhill Raceway Park complex in Willows, CA. Read more at

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