then you can afford a winter beater. I have an NA, and I store it every winter and just buy a beater, one I know will last at least 5-6 months if needs be. It may not even be about how hard it is to drive the Z in the snow, but what about the other people out there? Rear enders are 3 times as likely in the winter, and people tend to slide like crazy, so do you want someone messing up your ride because you're to cheap to buy a beater? (my beaters usually cost as much as a set of good winter tires would)