Turn the car into a tank
Expected steep frozen snow, so you need to be ready. Some guys believe that no rubber is not enough for the powerful snow, but I know that enough? Tracks, Holy smoke! Who actually realized the dream of my childhood — to fasten the tracks to the car to go anywhere. Tire-tracks are compatible with a huge number of machines, if not have, more than the full version. The full list can be viewed at American Track Truck, which implements these things.
They provide the maneuverability of the cars in the snow, the mud, dirt and other shnyaga. The cost is 25 thousand evergreen.