The Continental GT Speed convertible shares its powertrain specification with its Bentley stablemate the GT Speed coupé. The 625 PS (616 bhp) twin-turbocharged, 48-valve, W12 engine powers the new convertible to 60 mph in 4.1 seconds (0-100 km/h in 4.4 s.) and onto a top speed of 203 mph (327 km/h). Peak torque – an impressive 820 Nm (605 lb.ft) – is reached at just 2000 revs/min and maintains that level through to 5000 revs/min for effortless, refined performance at all times.
The latest ME17 engine management system, capable of performing 180 million individual calculations per second, provides enhanced turbocharger control and torque management, enhancing driveability. In common with all W12-engined models, the GT Speed convertible features an energy recuperation system. Together with a close-ratio, quick-shifting eight-speed transmission, this has resulted in a improvement in the CO2 emissions compared with the first generation Speed, with a commensurate increase in tank range.
The new GT Speed Convertible’s powertrain is even more tractable than its Speed predecessor, and just as fuel-efficient as the new W12 Continental GT. Switching the gear selector to ‘Sport’ mode however demonstrates the dual personality of the new GT Speed convertible, delivering a sharper throttle response, gear-shifting at higher engine speeds and faster ‘block shifting’ (eg 8th direct to 4th gear) for instantly accessible acceleration. The enhanced performance is accentuated by a glorious baritone snarl from the free-breathing exhaust, a thrilling soundtrack to the magnificent powerhouse under the bonnet.
