Before you start shopping for a car, you'll need to do some homework. Spending time now may save you serious money later. Think about your driving habits, needs, and budget. You can learn about car models, options, and prices by reading newspaper ads, both display and classified. There is a wealth of information about used cars on the Internet: enter "used car" as the key words and you'll find additional information on how to buy a used car, detailed instructions for conducting a pre-purchase inspection, and ads for cars available for sale, among other information. Libraries and bookstores also have publications that compare car models, options, and costs, and offer information about frequency-of-repair records, safety tests, and mileage. Many of these publications have details on the do's and don'ts of buying a used car.

Once you've narrowed your car choices, research the frequency of repair and maintenance costs on the models in auto-related consumer magazines. The U.S. Department of Transportation's Auto Safety Hotline (1-800-424-9393) gives information on recalls.

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The FTC works for the consumer to prevent fraudulent, deceptive and unfair business practices in the marketplace and to provide information to help consumers spot, stop and avoid them. To file a complaint or to get free information on consumer issues, visit www.ftc.gov or call toll-free, 1-877-FTC-HELP (1-877-382-4357); TTY: 1-866-653-4261. The FTC enters Internet, telemarketing, identity theft and other fraud-related complaints into Consumer Sentinel, a secure, online database available to hundreds of civil and criminal law enforcement agencies in the U.S. and abroad.