Seeking opinions/experiences. Looking at M3's, concerned about driving in winter/snow. Live in upstate NY. Easily drive a 530 w/snows through the winter. Probably won't keep the 530.What do you do with an M3 in snow/winter? Drive it?
Store it? Put snows on? Should I get 18's instead of 19's?
Any and all thoughts welcome. Thank you.

Get separate wheels with snows.

Seconded... snow tires/wheels would be _required_ IMO if you want to drive in the winter without risking damage.