Rolling onto the eco-friendly scene, the Bentley Continental Supersport is the luxury car maker’s first biofuel friendly auto. It’s green thanks to the FlexFuel system, but is also the company’s most powerful. The W12 engine produces 621bhp, and can propel the car from 0-100kph in 3.7 seconds, with a top speed of 328kph. The rest of the powertrain includes a six-speed Quickshift ZF transmission, it has 20-inch alloy wheels and an advanced ESP system. No price has been announced yet, but it’s not going to come cheap.