Anyone run 18" snow tires on a 2009 or newer Z4 (any model) through heavy snow? Was going to go with 225/40R18s on 18 x 8.5s... Wondering if there were any real significant disadvantages to running 18" as opposed to 17" in a good amount of snow. Since my 2011 Zed will be my only daily driver, I need a good set of snow shoes, and the selections seem to be way better for 18s and Tire rack keeps indicating issues with certain 17s fitting...
Plus, these wheels that I was kinda digging only come in 18" or bigger:
