Koenigsegg CCXR Special Edition Biofuel Supercar

It's hard to believe that a car a little more powerful than the average Bugatti Veyron (if not, reportedly, as well engineered) would run purely on E85 ethanol fuel, but here it is. Leaving aside the long-term concerns about biofuels, that's a move in a sustainable direction that is still unusual for a supercar.

The Swedish Koenigsegg CCXR costs a staggering $2.3 million to own, but a quick look under the hood explains why. The 4.7 litre V8 engine cranks out a buttock-prodding 1018 horsepower that means this carbon fibre beauty can rattle through the gears from 0 - 62 in 2.9 seconds with a top speed of 250 mph. There is a pimped version of the Veyron doing the rounds that pumps out 1200bhp, but at these levels, why quibble over 100 horses here or there?