Bentley will use the Geneva Motor Show to debut a new Continental based concept which will feature a bio-fuel compatible engine.

Little is known about the concept as details will be released closer to it's auto show debut but what we do know is that it will be the company's fastest and most powerful car to date. From the single teaser image it is clear that car is built around the Continental GT or Flying Spur and it will feature several minor exterior tweaks such as a new front bumper with larger air intakes, hood vents, and darkened grille inserts and headlight trim.

Judging by the fact that Bentley's most power model is the Continental GT Speed with 600bhp and 750Nm (553 lb-ft) of torque expect the new concept to offer a slight improvement over those numbers as well as a top speed greater than 202mph (326km/h) and a 0-60 mph acceleration time of less than 4.3 seconds. The greatest change should come in terms of reduced emissions and improved fuel economy, currently the GT Speed produces a hefty 396g/km of CO2 and has a combined cycle fuel rating of 17.0mpg (16.6 litres/100km).

The company announced their plans for a bio-fuel future at the North American International Auto in Detroit by stating that in 2012 their entire model range would be bio-fuel capable.