All of the GM owned Camaros at SEMA last year were on Pedders Xa coilovers. Jay Leno's Camaro was riding on Pedders Xa coilovers. Aside from the Official Pace Car look and the fact that the on track pace cars ran on Pedders you might want to see what they look like running hard
http://www.camaro5.com/forums/showthread.php?t=100421 You'll get the look and a lot more...