Bentley Mulsanne review - the ultimate in luxury? - Engine and transmission

Can the world's most torque-rich production car reward its driver?

Evo rating
Price
from £229,360
  • Power delivery, ride, refinement, build quality
  • Interior tech, body roll, not exactly cheap

Engine and Transmission 

The 6.75-litre twin-turbo V8 in the Mulsanne is a motor that, in one guise or another, has been in production since 1959. Here, in EU6 compliant form, this truly galactic motor produces 505bhp and, in the case of the range-topping Speed, 530bhp.

It is however the torque figure that is astonishing; 752lb ft in the standard Mulsanne and 811lb ft in the Speed. The latter is the most on offer in any production road car today.

This isn’t an M3-style high revving V8 either, the Bentley motor is designed to deliver its power as smoothly and as quickly as possible. As such, peak torque arrives at 1750rpm but the engine redlines at just 4500rpm.

This isn’t an issue though, as the 8-speed auto box delivers almost entirely imperceptible shifts when cruising. In the case of the Speed, a new S-mode will see the gearbox hold the revs above 2000rpm in order to deliver the maximum possible performance.

A Bentley insider did tell us that a three-speed auto gearbox would be sufficient given the torque on offer, but that the 8-speed helps contribute to better efficiency. Either way, the gearbox is as smooth as you’d ever need in an ultra-luxury saloon such as this.

The powertrain in the Mulsanne truly is a wonderful thing. The most linear of motors, with monstrous performance on offer when you need it, it’s truly fitting of the car’s price tag. It’ll also turn 22mpg on a motorway run, which isn’t particularly bad when you consider the sheer scale of the car.

Most Popular

2022 Land Rover Defender V8 revealed – £100k supercharged off-roader gets 518bhp
Land Rover Defender V8 MY22 - header
Land Rover Defender

2022 Land Rover Defender V8 revealed – £100k supercharged off-roader gets 518bhp

The Land Rover Defender range continues to expand with its most powerful iteration yet
25 Feb 2021
Will synthetic fuel save the performance car? The manufacturers weigh in
R8 Filler cap
Porsche

Will synthetic fuel save the performance car? The manufacturers weigh in

Porsche claims a car running on eFuel will have the same CO2 footprint as an EV, and BMW, Audi, Aston Martin and McLaren all agree
24 Feb 2021
Next generation BMW M2 spied – evo favourite reimagined
2022 BMW M2 spied nose
BMW M2

Next generation BMW M2 spied – evo favourite reimagined

The next generation 2-series coupe will spawn an all-new M2 after all, spied here for the first time
25 Feb 2021