'15 GT Tire/Wheel Options
I have the base GT with the 18's and have been considering going to either 19's or even 20's. Is there any additional mods required to the hub (i.e. spacers, etc) if I went to the 20" wheel and tire package? Also, I intend to do the same 4 sizes all the way around (unlike some of the packages in which the rear tires are larger). I assume that's "OK"?
Finally, what's the situation with the spare tire that comes with my car, and its compatibility for emergency use once I go to the larger size? Is its use limited to having 18s, or can it be used temporarily in the event of a tire failure once I increase the tire/wheel size?