To add on my earlier thought, if you do make the decision to buy (or shop for and consider) an extended warranty, you may want to consider going direct with the insurance company. Ford, Chevy, etc arent in the insurance business, they sell cars and financing. The dealer gets the insurance from an insurance company, and will then sometimes mark up the living hell out of it before selling to you for a fat profit.
Do not buy insurance from any company that is not at least rated about B+ or so by A.M. Best (Any insurance company who has a good rating will brag about it on their web site somewhere). The one and only time I ever bought an extended warranty was from
www.warrantydirect.com, rated A-, been in business for 26 years with millions of policies, so they arent going out of business anytime soon. Going direct is usually cheaper with better coverage than the dealer.