People have forgotten how much better snow tires are in all winter conditions. Definitely get them if you have the storage space. Doesn't really cost you, as it saves wear on your normal tires. All-season don't cut it at all in snow and ice. Get an extra set of rims so you don't have to remount them every year and you are good to go for years. In my opinion save the money on 4WD or AWD and get snow tires, which only help you go. Snow tires help you maintain control and stop as well. I had a firebird in Grand Forks, North Dakota for 5 years. With snow tires I could go okay, without them I couldn't even accelerate from a stop with only the sheet of ice that totally covered the road all winter.