Cost of owning and operating a Cadillac DeVille (eight-cylinder) for one year
$17,463
Cost of owning and operating a Honda Civic LX (four-cylinder) for one year
$7,561
One-year savings
$9,902
Five-year savings
$49,510
Source: Runzheimer International. Total costs include insurance, depreciation, financing, taxes, licensing, fuel, oil, maintenance and tires.