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

BMW X5 M Competition 2021 review – how does the M division’s biggest SUV stack up?
Crop X5 M Competition
BMW X5 M

BMW X5 M Competition 2021 review – how does the M division’s biggest SUV stack up?

In many ways critically flawed, but there is something oddly captivating about its unerring focus
7 May 2021
Mandatory speed limiters to be fitted to all new UK cars after 2022
80mph motorway speed limit
News

Mandatory speed limiters to be fitted to all new UK cars after 2022

The use of mandatory speed limiters and data loggers on all new cars has been approved by the European Parliament, and manufacturers are already makin…
28 Apr 2021
Audi RS6 v Porsche Panamera Sport Turismo v Mercedes-AMG E63 S Estate – super-estates go head-to-head
Audi RS6 v Porsche Panamera v Mercedes-AMG
Features

Audi RS6 v Porsche Panamera Sport Turismo v Mercedes-AMG E63 S Estate – super-estates go head-to-head

Which 600bhp wagon is the current super-estate king? It‘s time to find out as the Audi RS6 Avant takes on Porsche Panamera Turbo S E-Hybrid Sport Turi…
8 May 2021