The Bentley Batur Convertibles, the most powerful W12-powered drop-tops, are the last to be powered by the 739 horsepower hand-assembled 6.0-liter twin-turbocharged W12 engine, with only sixteen to be made. The convertible roof can be deployed or stowed in just 19 seconds, with the car travelling at speeds of up to 30 mph. The Batur Convertible is customizable with each customer able to specify the color and finish of literally every single surface of both the exterior and cabin of the car.