Not So Green but Trying!
Powered by the British auto-maker’s 6.0-liter, twin-turbo W12 engine, the Continental GT Speed Convertible packs 616 hp and 590 lb-ft of torque, while delivering a 15-percent improvement in fuel efficiency compared to its predecessor. The engine is mated to a close-ratio, eight-speed transmission while uprated and lowered suspension along with...