I know this is a stretch, but since we are expecting something 'new/extra' in 2006 model year, whether it be a TT, SC or the new GT-R, does anyone have any idea what they are using for wheels on any prototypes??
I would love to invest in some performance wheels for my Touring, but ideally the stock wheels would go back on when I sell my Z and the performance wheels would be used on the "next" generation.

 

Im not following your question... the rims will likely be the same... if not, there is no reason you cant remove the rims(whatever they are) and put your own on.

of course, Id expect they would give you the rays rims that the track model has on any higher power varieties, assuming you think such a thing will exist.

 

I would probably be looking at buying 19's. Basically, I'm just wondering if they might be contemplating 20's or something even larger, such that 19's would not perform well, or even worse, might not clear the brakes. I would also hope that the bolt pattern would be the same.
The new FX45 is already running 20's.