Bentley just released a photo of it’s first foray into the world of eco-friendly cars with a biofuel luxury car that it promises will be the fastest, most powerful and clean car the company has ever built. The biofuel Bentley will be unveiled at the Geneva Motor Show in March as a testament toward the automaker’s goal of reducing the average CO2 emissions of its entire fleet.

The problem lies in the supposed benefits of biofuel. Switching to biodiesel on a large scale requires considerable use of our arable area. Even modest usages of biodiesel would consume almost all cropland in some countries in Europe. If the same thing was to happen globally, the impact on the world’s food supply could be a disastrous. Biodiesel also tends to reduce fuel economy, and is less suitable for use in low temperatures.