Cars with six-figure sticker prices fill out the list of the world's least fuel-efficient cars, according to the 2010 Fuel Economy Guide released October 15 by the US Environmental Protection Agency and the Department of Energy.

The more you pay the less you get, at least when it comes to fuel efficiency. All of these cars represent the crème de la crème of the automotive world and the scourge of the tree-hugging world.

It's likely that if you can afford the least fuel-efficient car on the market, the Lamborghini Murcielago (base price: €237,000) you aren't spending too much time worrying about any upcoming rise in fuel prices.

If you get as much pleasure from driving a Toyota Prius as you do a Ferrari 612 Scaglietti (base price: €210,000), you probably won't be found in the fast lane too often.

And if Mother Nature means more to you than €366,000, the starting price for a luxurious Maybach 57, your accountant is probably just as pleased.

Also found among the pricier gas guzzlers, the Infiniti EX35 crossover SUV comes in at €25,000.

The World's Least Fuel-Efficient Cars

Class Model Efficiency (mpg/kpl)
Two Seater Lamborghini Murcielago Roadster
Minicompact Aston Martin DB9 14/6
Subcompact Bentley Continental GTC 14/6
Compact Bentley Azure 12/5
Midsize Ferrari 612 Scaglietti 13/6
Large Maybach 57 13/6
Small Station Wagon Infiniti EX35 20/9
Midsize Station Wagon BMW 535i Sport Wagon 20/9

Note: mpg = miles per gallon; kpl = kilometers per liter

All efficiency figures are an average of the car's highway and city ratings.

Search for used cars