Bentley’s new Mulsanne Speed, the world’s fastest ultra-luxury driving experience
The new Mulsanne Speed is tailored for the driver, with 537 PS (530 bhp / 395 kW), 1,100 Nm (811 lb.ft) and selectable sports suspension and steering on demand.
The reengineered powertrain, featuring Bentley’s mighty 6¾-litre twin-turbo V8, propels the Mulsanne Speed to 60 mph in 4.8 seconds (0‑100 km/h in 4.9 seconds) and on to a top speed of 190 mph (305 km/h). In modern Bentley tradition, the extra performance is matched by markedly improved efficiency; a 13% gain means a range extended by 50 miles (80 km).
At the heart of the Mulsanne Speed is Bentley’s iconic 6¾-litre twin-turbo V8 engine, which has been re-engineered for the Mulsanne Speed as well as the signature Mulsanne. A totally redesigned combustion system (including combustion chamber, inlet ports, fuel injectors, spark plugs, and compression ratio) promotes a much faster and more controlled combustion process. Through combining these advances with new variable valve timing and optimised turbocharger control, torque output of the engine has been pushed to record levels – 1,100 Nm (811 lb.ft) from 1,750 rpm.
An extensive recalibration of the engine management system has yielded benefits beyond increased torque and power. The cylinder deactivation system, that runs the engine as a V4 during light load, has been retuned for smoother transitions between V8 and V4 for even greater refinement. This work combines with a new gearbox control strategy and the engine hardware improvements to give a new level of efficiency for the Mulsanne engine.