holy beegiebers, forget about it
Back to the vintage wheels for me... So what I am seeing is:
15" wheels - cheaper by ~$500, cheaper competition compound tires - but limited to options, hoosier (longer life - smaller dia. than stock) and billboards (3 track days).
17" wheels - more expensive ~$500, slightly more expensive compeition compound tires (~$250/ea?), more tire options, but a smaller overall dia. than the stock sizes (and the only stock size option is the billboards on 15").
Looks to me is +$500 for the 17's buys you some more options...
-n