December 2, 2007 2:32 PM —

The fifth annual running of the United States Air Force 25 Hours of Thunderhill^TM
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 nasa25hour.com