As your vehicle ages, the paint and finish become more vulnerable to oxidation, scratches, chipping, and eventually, rust. Wash and wax your car regularly, and if you can, keep your vehicle in the garage to protect it from the elements. If you don’t have a garage, using a car cover will also help protect the finish. Your car’s interior is just as important. You should clean the carpet and upholstery regularly, and use floor mats and seat covers to prolong the quality of your car's interior. Never smoke in the car. Remember the surgeon general’s warning: Smoking is hazardous to your – and your vehicle’s – health.