Does anyone have any idea of the diameter of the RX-8's steering wheel. Looks like around 13 to 14 inches, but I'm not sure.

I'd imagine it'd have the same size wheel as a Miata. Certainly no bigger than the new 6.

I think 13" - 13.5" would be perfect. I have a 13.5" aftermarket wheel in my MR2 and it feels good most of the time - a tad big once in a while. Sure beats the stock 14.5" wheel though. ;)

Seems pretty good to me, I'm sure I can get used to it.

I drove the Caddy CTS... that steering wheel is like the one you find on a SHIP! :D I hated that thingy hehehehee.