The idea of “going green” takes a whole new spin with the announcement that Bentley will unveil its new FlexFuel capable Supersports convertible at the Geneva Motor Show, which opens on March 4.
The droptop will feature with the same 621 horsepower twin-turbocharged W12 engine as the coupé introduced in 2009, the fastest and most powerful convertible Bentley has ever built.
The car will run on both gasoline and E85 bioethanol or any combination of the two.
The Geneva auto show unveiling of the Supersports convertible comes as Bentley pushes to standardize FlexFuel technology across the entire 2011 Continental model range by 2012.
Where does the idea of “going green” come in? The FlexFuel technology used on the Continental model range offers a reduction of up to 70 percent in CO2 emissions on a well-to-wheel basis, according to Bentley.
The increased power and torque of the W12 engine necessitated an additional 10 percent airflow to the twin turbocharger intercoolers and cooling system. Styling elements for the cause include large vertical intake apertures and twin hood vents to ensure positive air extraction.
How does it all work? E85 biofuel has a very high octane rating of 105 but a lower energy content compared to gasoline that requires a 30 percent increase in the engine fuel flow rate.
To increase the fuel flow the system uses a “returnless” fuel system, twin variable flow fuel pumps and a new closed loop fuel rail design with pressure sensor.
A fuel quality sensor detects the blending ratio of the fuel in real time sending a signal to the engine control unit (ECU), initiating the correct engine mapping. It keeps a checks and balances on all of the performance parameters of the system.
With a 0-60 mph speed of 3.9 seconds and a top speed of 202 mph, the Continental Supersports convertible is the fastest droptop Bentley has built. It is also the fastest four-seat convertible in the world.
Although pricing for the car hasn’t officially been announced, it’s expected that the Supersports convertible will cost around $300,000.
How’s that for a push to help save the environment?
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