As the fastest production Bentley ever, the new Continental GT Speed reaffirms the legendary W12's status as an engine of extreme performance. Developing 625 PS (616 bhp) at 6000 rev/min and 800 Nm (590 lb ft) of torque from 2000 rev/min, the twin-turbo, 48-valve, 6.0-litre W12 is now fitted with the very latest ME17 engine management system. Capable of performing 180 million individual calculations per second, the new system delivers enhanced turbocharger control, outstanding torque management and improvements to driveability. In addition, a revised Sport mode provides a sharper throttle with faster response for effortless acceleration at all speeds.

The W12 engine is mated to a ZF eight-speed transmission for the first time. Designed to handle the extreme levels of torque generated by the W12, the transmission cuts acceleration times by ensuring that the engine is always at the ideal speed for peak torque delivery. This state-of-the-art transmission also features "Block Shifting" technology, capable of shifting directly from (for example) 8th gear to 4th gear for instantaneous response and thunderous acceleration.

The combination of the new transmission and the uprated engine results in breath-taking supercar performance. The sprint from 0-60 mph takes just 4.0 seconds (0-100 km/h in 4.2 seconds) and the relentless acceleration continues to a top speed of 205 mph (330 km/h). 0-100 mph is dispatched in a mere 9.0 seconds — a level of performance akin to the previous generation Continental Supersports, and almost a full second quicker than the updated 575 PS Continental GT.

The exhaust system of the new GT Speed has been developed from the free-breathing, low back pressure design first used on the Continental Supersports Ice Speed Record car. The new exhaust produces a sportier, more intense baritone sound under hard acceleration without sacrificing a relaxed, refined and quiet tone during cruising conditions.