Ditto, yes they will work and you can call your local dealer- call the parts dept. Im waiting on one of my friends in our parts dept to get me a set of the 18's that are coming with the g35-- Im probably just going to buy something else b/c Im going to wait forever unless I get 350Z wheel, plus I can get Motegis from my distributor on sale right now!
Call them anyways though- My dealer wants 500 bucks for the Wheels and Tires (mounted and balanced obviously) with the hardware-
Todd