Mountains of snow? We don't see THAT much snow here in Denver. We get out share, but usually pretty manageable. First, any all-wheel or four-wheel drive will do much better than any two-wheel drive car. Snow tires or good all-season with sufficient tread is recommended. As silly as it sounds, be sure to keep an ice scraper in the car. I remove it each spring and then forget once, the first time it's needed in the winter! An emergency package is highly recommended. I've been stranded on closed highways in the mountains more than once. Some food, water and blanket are key essentials. You can add all kinds of other items, room permitted (flashlight, game/cards, etc).