Resale value retained after five years: 47% Oh, so you say this beast retains value? That's good. You should expect some equity when your car's starting price is close to that of a small house. With 383 horsepower from its 5.7-liter V8 engine, 7,000 pounds of lowing capacity, 83 cubic feet of maximum cargo space and lots of screens and heated seats, this rolling boutique hotel room has to work overtime to make up for a paltry 14 miles per gallon of fuel economy, including only 12 miles per gallon of city driving. There are city buses blessed with better mileage.