The shots were taken by an eagle-eyed Pistonheads reader who posted the shots in October. It definitely appears to be the Supersports Convertible, it has the revised front bumper and bonnet, both of which provide a great deal more cooling for the beefed up engine.
Apparently spied during a photo shoot, the ragtop has the same styling tweaks (a revised front bumper, a ventilated hood, smoked headlights, 20-inch wheels, and two sport seats) as the standard Continental Supersports. Besides the exterior changes, the convertible also features a modest weight reduction, a 'Quickshift' transmission, and carbon-ceramic brakes.
Power will be provided by a 6.0-liter twin-turbo W12 engine that can run on regular petrol or E85 bio-fuel. Producing 621 hp (463 kW) and 800 Nm (590 lb-ft) of torque, the Supersport Convertible will likely accelerate from 0-60 mph in 3.8 seconds before topping out somewhere in the neighborhood of 200 mph (322 km/h).
Look for more information to be released when Bentley officially unveils the Continental Supersports Convertible at next month's North American International Auto Show or the Geneva Motor Show in March 2010.