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10. BMW X3 | Average 5-Year Depreciation: 66.5% ($35,682) (BMW of North America via AP)

The new cars that retain the most value after five years consist of trucks, truck-based SUVs and sports cars. Luxury sedans depreciate the most according to a new study by automotive research firm and car search engine <a href="https://www.iseecars.com/" target="_blank”>iSeeCars.com.</a>