Ensure your car is ready for the cold by checking that service items are up to date, you have sufficient antifreeze in your coolant system, and you've chosen appropriate tires for your car. Check that your battery is in good condition, especially if you need to electronically open or close the roof. And if you're wondering how to protect your convertible's soft top in the winter, consider investing in a waterproofing or water-resistant soft-top conditioner that will help to keep it in good nick and prevent it from perishing.