Would appreciate any opinions and/or comments on the visual aesthetics of replacing the stock Cayenne S 18" wheels with the 18x10 Turbo Twist (Technology) wheels found on the 993TT and 996TT models. I tried Tire Rack just to see if their "Check these wheels on your car" program, but (oddly) a 2004 Cayenne is not an option (although a 2003 Cayenne is!). And, for the 03 model, Tire Rack currently offers little (if anything) in the way of upgrades.

Anybody have any opinions about a setup like this?

 

Not sure, but it might look a little odd. Those wheels could look disproportionately small on the Cayenne, though they would likely look better than the factory 18s. The 19" factory wheel is quite nice - similar to the design I've seen on the 2004 GT3. Click my sig for photos.