Rudy,
just curious, are the pirelli scorpion ice and snow's no longer recommended as a 20" tire for the camaro? They were last year when I did my research, and I got them from a local tire shop.
http://www.tirerack.com/tires/tires....omCompare1=yes
I found that if I manually select 245/45/R20 and 275/40/R20 I can get them.
Here's the post where number 3 suggested them.
http://www.camaro5.com/forums/showthread.php?t=51061