Pajim:

Snow tires and replacing the 19" wheels with 18" for winter has been discussed at length.

Use the search function at the top of the screen and search for "winter tires" and "snow tires".

Basically, I bought four stock 18" wheels and Dunlop snow tires. I also put five 40 lb bags of rock salt in the trunk. If you get new rims with sensors for the tire pressure monitor, they will have to be reset by the dealer. It takes about 5 minutes.

I was able to get around every day last winter, except for two, which really needed 4 wheel drive.

Look on ebay for wheels. They seem to be available regularly.