I was going to ask how the GoPro worked out for you...
solid video, was it on a hero HD or a hero 2?
BTW, tell your bud to remember clean his windshield of the bugs before you shoot video again.
Sounds like you had fun. There's plenty of groups that run BIR for lapping, so you can get there before July 5th if you want.
"Some say he's illegal in 17 U.S. states and that he blinks sideways...all we know is he's called The Stig."