The car battery should be removed and put in the interiors where there should be enough ventilation to see that hydrogen does not build up in the battery. Never place the battery near any sleeping areas.
In snow and ice areas you can buy “winter wiper blades”. These wipers have the frame work of the wiper enclosed in rubber. This prevents the snow and ice from building up and turning the wiper into useless pieces of frozen rubber.
The pressure of the tire should be increased to prevent the tire from becoming flat and also developing leaks. The tire can also be filled with nitrogen which would help in the prevention of dry rot. Also, the car can be raised up to get the tires off of the ground.