Orange wheels on the 350. thats my vote!
I also like mike (the powedercoater) orange and black setup. red on red.. eh. I was thinking of doing that with my wheels... color matching them black cherry.. I saw one member on here that has everything on his car matched to black cherry including the sport oems. it looks pretty good... but then I figured I didn't like it. I like black wheels or black wheels with a lip. gun metal is cool as well. If you really want to color match them have you thought about maybe just inside accents? Maybe you can get a render of that. But,,, all in all I dont think the Z was made for bling and 24's.. I think 20's is pushing the envelope. 19's look great with the right tyre. 18's for track purposes. 20's for a daily driver that waxes their car every morning before they go to work maybe.... not my style.