The source provides an extensive guide for consumers seeking to purchase reliable cars by focusing on three essential criteria. First, buyers must research a car's reputation and independent reliability ratings from organizations like J.D. Power and Consumer Reports to understand a model's track record over time. Second, the text explains the importance of analyzing maintenance and ownership costs, including average repair expenses, service intervals, fuel efficiency, and depreciation. Finally, the guide emphasizes checking a vehicle’s build quality and technology by assessing materials, engineering, manufacturing standards, and the dependable integration of complex modern systems like infotainment and driver-assistance features. The ultimate goal is to help buyers synthesize this information to select a dependable and cost-effective vehicle.