I have the 21 inch wheels with Continental tires and live in NJ. Not very practical for the winter but I couldn't help myself, loved the look. I know these are summer tires only and I was wondering when should I store the car for winter? Is it temperature dependent or snow dependent? I was thinking of buying these flat stoppers as well: Amazon.com: Race Ramps RR-FS Flatstopper (Pack of 4): Brute Industries: Automotive Do I need to do anything else besides plug it in my garage? I don't know if I will make it driving my Audi AWD and might just break down and buy 19 inch wheels with snow tires, lol.