Good stuff -
I'll have to check out what the audi rims look like. Also any sources for corrado G60 rims?

Yeah - I run the 225/14 Hoosiers now. I was thinking about being able to have options for different tracks rather then changing the final drive gear. I also was looking for a shorter side wall for less deflection and rollover. I am not against trying the 205's on the 15" rims which might be faster at some of the higher speed tracks then using the 225 14" or 15". On some of the slower tracks like Lime Rock and NHIS the fatter tire might be better.
ScotMac - thanks for the diam sizes.
Maybe I can try and squeeze the 225/45/15 onto the 6" rim - Anyone done it?
Thank for all the help!
Beran