Check out our Philly region results. I paxed 19 out of 120 (and that's on street tires).

http://www.autox4u.com/2003results/542003phillys.htm

 

I feel better about you being only a second behind the Z06s now that I see your times were in the 30 second range. I was about two seconds or so off their pace, but our runs were around 60 seconds, so that makes sense...

JW