This video was on the SCCA site from this past weekends SCCA group 2 race at willow.The race itself is not exciting but it is a good video of a couple of laps at willow, also known as the fastest road in the west.
The driver uses a system called a "datacam2" that shows a rearview as well as throttle, rpm, brake, speed and lateral g's.
The BMW that flies by the Z06 at the start is John Norris an outstanding driver who race for GT imports in Venice, CA.
http://video.google.com/videoplay?docid=-731478602164278381
Hope you enjoy it.
Randy
Car 54. SCCA G production 914