2021 Bentley Mulsanne Specs: MPG, Gas Mileage, Engine Size & Dimensions
2021 Bentley Mulsanne Specs at a Glance
The 2021 Bentley Mulsanne gets 14 mpg combined on the 6.8L Rear-Wheel Drive configuration, weighs 6,019 lbs, measures 229.5 in long. Figures are per configuration, not a single official number — other trims rate as low as 12 mpg combined. Every figure below comes from EPA, NHTSA, or manufacturer published data — no estimates.
- Combined MPG
- 14 mpg (11 city / 18 hwy)
- Best configuration: 6.8L · Rear-Wheel Drive · Automatic (S8) · other 2021 trims rate 12–14 mpg combined
- Engine
- 6.8L 8-cyl
- 6.8L · Rear-Wheel Drive · Automatic (S8)
- Curb weight
- 6,019 lbs
- Heaviest recorded configuration: MULSANNE 4DR SEDAN LWB
- Length
- 229.5 in · 76 in wide · 60.6 in tall
- Wheelbase
- 138.6 in
Detailed Specifications
MPG & Fuel Economy
MPG for every year and trim
View details →Engine Specifications
Engine Specs for every year and trim
View details →Annual Fuel Cost
Fuel Cost for every year and trim
View details →Transmission Specifications
Transmission for every year and trim
View details →Drivetrain & Drive Type
Drivetrain for every year and trim
View details →Vehicle Class & EPA Size Category
Vehicle Class for every year and trim
View details →Maintenance Schedule & Service Intervals
Maintenance for every year and trim
View details →Dimensions & Size
Dimensions for every year and trim
View details →Curb Weight
Curb Weight for every year and trim
View details →Bentley Mulsanne — All Years Overview
| Year | Trim | Engine | Trans | Drive | City | Hwy | Combined | Fuel |
|---|---|---|---|---|---|---|---|---|
| 2020 | Auto (S8), 8 cyl, 6.8 L | 8 · 6.8L | Automatic (S8) | Rear-Wheel Drive | 10 | 16 | 12 | Premium Gasoline |
| 2019 | Auto (S8), 8 cyl, 6.8 L | 8 · 6.8L | Automatic (S8) | Rear-Wheel Drive | 10 | 16 | 12 | Premium Gasoline |
| 2018 | Auto (S8), 8 cyl, 6.8 L | 8 · 6.8L | Automatic (S8) | Rear-Wheel Drive | 11 | 18 | 14 | Premium Gasoline |
| 2017 | Auto (S8), 8 cyl, 6.8 L | 8 · 6.8L | Automatic (S8) | Rear-Wheel Drive | 11 | 18 | 14 | Premium Gasoline |
| 2017 | Auto (S8), 8 cyl, 6.8 L | 8 · 6.8L | Automatic (S8) | Rear-Wheel Drive | 11 | 17 | 13 | Premium Gasoline |
| 2016 | Auto (S8), 8 cyl, 6.8 L | 8 · 6.8L | Automatic (S8) | Rear-Wheel Drive | 11 | 18 | 14 | Premium Gasoline |
| 2015 | Auto (S8), 8 cyl, 6.8 L | 8 · 6.8L | Automatic (S8) | Rear-Wheel Drive | 11 | 18 | 13 | Premium Gasoline |
Compare across every brand
All Bentley Mulsanne specifications
Bentley Mulsanne — Frequently Asked Questions
What is the fuel economy of the 2020 Bentley Mulsanne?
The Bentley Mulsanne is EPA-rated at up to 14 MPG combined (11 city / 18 highway), a historical peak recorded on the 2018 model year.
What engine does the 2020 Bentley Mulsanne have?
The Bentley Mulsanne uses a 6.8L 8-cylinder engine paired with an Automatic transmission.
What years of the Bentley Mulsanne are covered here?
This page documents 7 verified Bentley Mulsanne configurations across model years 2015–2020.
Which model year of the Bentley Mulsanne is the most fuel efficient?
The 2018 Bentley Mulsanne holds the highest combined rating at 14 MPG; the 2019 sits lowest at 12 MPG, a difference of 2 MPG (about 17%) across the 6 rated years on file.
How many engine options does the Bentley Mulsanne have?
Across every year on record the Bentley Mulsanne uses one displacement, 6.8L, so trims differ by drivetrain and equipment rather than engine size.
Is the 2020 Bentley Mulsanne front-wheel drive or all-wheel drive?
Every Bentley Mulsanne configuration on record here is Rear-Wheel Drive; no alternative drivetrain appears in the 2015–2020 data.