Check out this video on the United States Air Force 25 Hours of Thunderhill, its a race that is not very well known over here in the UK but it seems to be along the same lines as the Britcar 24.
Video Description –
A piece showcasing the drivers and crew behind the longest race in North America, “United States Air Force 25 Hours of Thunderhill”. Film by Landis Fields, Brian Berringer, Pete Billington, Punn Wiantrakoon, Zac Wollons and Anna Fields. Music by Vincent Tone – Astronaut.
Special thanks to Optrix, Brad Rampelberg, John Willenborg, Atomic Fiction, Kevin Baillie, The Atlanta Motorsports Group, Beau Borders, Jason Hoover, Jen Cain, Thunderhill Raceway Park, National Auto Sport Association.