Make sure you have antifreeze in the radiator. Put windshield wiper fluid in your windshield wiper reservoir. It won't freeze in cold weather. This heater warms up your engine block before you start the car, so it is easier to start. Get good tires.
Snow tires are best for deep snow.
Many people use all season tires for hard snow on city streets. You can use these tires all year. Some roads outside cities have lots of snow and ice. The police may require your car to have snow tires or chains to travel on these roads. You can talk to the people at your local garage or service station for information and advice about winter car care.