The American Automobile Association (AAA) publishes per-mile vehicle operating cost estimates in Your Driving Costs. To calculate the costs, AAA estimates annual costs for small, medium, and large sedans using data from five top-selling current-year vehicles for each group. AAA’s estimates assume that drivers drive 15,000 miles a year and trade in vehicles after 5 years. Fixed costs include depreciation, insurance, licensing, registration, taxes, and finance charges.

SOURCE: Bureau of Transportation Statistics, 2016