You may certainly reduce or remove coverage off a vehicle that is not being driven. However, if you plan on driving the vehicle you will be legally required to purchase liability insurance to ensure your vehicle is road-legal. It’s also not a bad idea to carry comprehensive insurance even while your vehicle is taken off the road. Comprehensive coverage protects from theft, fire, wind, vandalism, and more. Some drivers who have solely summer vehicles choose to do this. Also you my check our Auto Garage Insurance