"I'm glad we could make a deal," the salesman says, shaking your hand. But just as you've breathed a sigh of relief, you realize that you are walking into the Finance and Insurance (F&I) office to finalize the contract. Once inside that room, the F&I manager will likely offer you things like paint protection, prepaid maintenance plans, theft-recovery systems and a road-hazard warranty for your tires. But the biggest product he'll probably push will be the extended warranty for the car itself. Extended warranties, also known as "service contracts," can provide peace of mind to some car buyers. Car dealerships like them because they are an additional profit center for the business. As with any decision in a car purchase, it is important for you to research and weigh the benefits of the product.