Detroit Auto Show 2013
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Hottest Cars from the Detroit Auto Show

Bentley GT Speed Convertible

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Bentley Continental GT Speed Convertible

The world's fastest four-seat convertible has a top speed of 202 mph, and a 625 PS (616 bhp) twin-turbocharged 6.0 liter W12 -- all the while delivering 15 percent improvement in fuel efficiency, Bentley said. The eight-speed transmission, lowered suspension and re-tuned steering provide exhilarating acceleration and sharp handling.

Design features include 21-inch alloy wheels, dark-tint grilles and 'rifled' exhaust tail pipes. The front wings of the GT Speed Convertible are created in super-formed aluminium, their crisply-defined body creases creating a "muscular" impression.

Jonathan K. Li | CNBC