I'm considering getting a set of 17" wheels w/winter tires for winter use. (my G35 coupe will come with 18" wheel package) Would it work if I got all 4 wheels with 225/50 tires as oppsed to 225/50 at the front and 245/50 in the back?

 

I imagine the same-sized tires would work just fine. However, since your car comes with 18" wheels, do you have the Brembo brakes? If so, finding a 17" rim that fits over the Brembos will be your challenge.

2003.5 G35 Sedan Desert Platinum/Graphite Premium/Sport/Aero/Nav/Winter