For most people, fuel economy is an important factor. The 13 cars listed here don’t take any care to fuel economy.
13. Bugatti Veyron
There is really no surprise here, but the Veyron gets an astounding 10 mpg combined. Apparently, 16-cylinders sip through a lot of fuel. This mileage is, of course, reachable if you drive it in a civilized manner, which you won’t.