Bugatti Veyron
VW Group's Bugatti Veyron could be called the anti-Prius.
What's not surprising is that the mother-of-all-supercars is the top bad boy on the ACEEE's list. What else do you expect when you're packing an 8-liter, 16-cylinder engine that pumps out 1,001 horsepower, or roughly one horsepower for every two grand that you'll spend on the Bugatti Veyron, the crown jewel of the Volkswagen Group. After all, you're not going to hit that 265 mph top speed merely sipping on premium gasoline. No, what's amazing is that this modern legacy of Ettore Bugatti actually gets double-digit mileage on the highway - 15 mpg, to be precise (and 8 mpg city, if you must ask). And much like anyone who can afford to fly in a private jet isn't likely to care much about the price of a commercial ticket in coach, folks who order either of the VW Group's Bentley-badged confections aren't likely concerned about the constantly rising price of gasoline. These aren't cars so much as they are works of automotive art built for those who appreciate life's finer things - and want people to notice that they do. The Mulsanne is Bentley's flagship, a 5,700-lb QE2 on wheels that is propelled by a 6.8-liter V8 (hence the 11/18 mpg average, which is shared by the GTC). The interior of this mobile drawing room is a riot of leather and choice hardwoods, while the car stereo - if you can disparage it that way - comes with a standard 2,200-watt amplifier. The Continental GTC plays a similarly exclusive tune. However, with its two doors and folding roof, it's more for country drives than state dinners. If you care about fuel efficiency and admirable emissions, forget these cars. But don't pass up a ride in them. The wide-eyed child in you with thank you.