except I already have the 17s...I highly doubt it too and to tell you the truth...in the short bit I have been driving mine...it drives just fine and I drove it in the rain...STILL sweet...I may just get a spare set of wheels and Blizzaks...I know the Corvette guys get apoplexic over this stuff and I just didn't want to be "missing out" on something if I should complain...I believe the dealers can re-write the window sticker and what not and perhaps after they put the SAP on they just replaced with different wheels...or someone else buying a GTO wanted the bigger wheels...by the way, I haven't turned over my check from the credit union just yet...
Bill