BTW - does anyone have any idea of what size winter tire would be needed? I have a G35C 6mt with brembos.
[/quote]
As the next post leads you to it, go to tirerack.com. Also, look carefully thru tirerack's surveys and comments from actual owners. It is very interesting. To me, I noticed that there is a Sumitomo tire that is all weather high perf (or ultra high perf) that is a bargain price--htrz?? (235/45/17 about 100). Obivously, it wouldn't do well in 10 inches of snow. But, if your area is light on snow, it may be a "winter" alternative that would far outlast any true winter tire. The comments and ratings for that tire were almost as high as the highest-rated Michelins all season tires (again) and about 120 less per tire.
For my 6mt coupe, I'll probably have to go with a separate set of wheels and tires unless I get a "winter" car which could be a "beater". Minnesotans (and others) know about winter "beaters".[

]