Bentley Mulsanne Engine Specifications

The 2020 Bentley Mulsanne is offered with 6.8L engines in 8-cylinder form, per EPA fuel-economy records.

Latest model year (2020):

The Bentley Mulsanne is available with 8 6.8L and Automatic (S8) (Rear-Wheel Drive).

Verifiedfueleconomy.gov · Verified August 11, 2026

Bentley Mulsanne Engine Specs — All Years

YearTrimCylindersDispl.TransmissionDriveFuel TypeVehicle Class
2020Auto (S8), 8 cyl, 6.8 L86.8LAutomatic (S8)Rear-Wheel DrivePremium GasolineMidsize Cars
2019Auto (S8), 8 cyl, 6.8 L86.8LAutomatic (S8)Rear-Wheel DrivePremium GasolineMidsize Cars
2018Auto (S8), 8 cyl, 6.8 L86.8LAutomatic (S8)Rear-Wheel DrivePremium GasolineMidsize Cars
2017Config 1 of 2Auto (S8), 8 cyl, 6.8 L86.8LAutomatic (S8)Rear-Wheel DrivePremium GasolineMidsize Cars
2017Config 2 of 2Auto (S8), 8 cyl, 6.8 L86.8LAutomatic (S8)Rear-Wheel DrivePremium GasolineMidsize Cars
2016Auto (S8), 8 cyl, 6.8 L86.8LAutomatic (S8)Rear-Wheel DrivePremium GasolineMidsize Cars
2015Auto (S8), 8 cyl, 6.8 L86.8LAutomatic (S8)Rear-Wheel DrivePremium GasolineMidsize Cars

Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.

Bentley Mulsanne data analysis

How Bentley Mulsanne engine displacement varies

Across 7 configurations recorded for the 2015 through 2020 Bentley Mulsanne, engine displacement runs from 6.8 litres to 6.8 litres. The strongest figure belongs to the 2020 Bentley Mulsanne (Auto (S8), 8 cyl, 6.8 L) at 6.8 litres, and the weakest to the 2015 car (Auto (S8), 8 cyl, 6.8 L) at 6.8 litres — a spread of 0%. The narrow spread means any year of the Bentley Mulsanne in this table behaves much like the others, so you can shop on price, condition and mileage rather than chasing a particular model year.

What changed for 2020

Average engine displacement for the 2020 Bentley Mulsanne is 6.8 litres, against 6.8 litres for the 2019 car — it held flat. A carry-over year like this usually means no powertrain or structural change, so an older example is the cheaper way into the same specification.

How to read this Bentley Mulsanne data

This page lists every 2015 through 2020 Bentley Mulsanne record we hold for this measurement — 7 rows in total, one per configuration and model year rather than a single headline figure. Figures are published as the source agency records them: we do not round, average or interpolate missing years, and a year that is absent from the table is a year with no published measurement rather than a zero. Where a manufacturer offered several drivetrains or body styles in the same year, each appears on its own row, because those variants rarely share the same numbers.

Where these Bentley Mulsanne figures come from

Every value on this page is loaded from federal open data — EPA fuel economy submissions, NHTSA vehicle and crash-test records, and manufacturer specification filings — rather than dealer listings or copied editorial content. The Bentley Mulsanne record refreshes as the agencies publish, which typically means new model-year rows appear in the autumn and crash-test results follow through the model year as vehicles are tested. Because certification data is filed per configuration, treat any single headline number for this vehicle with caution: the figure that applies to a specific car depends on its engine, drivetrain, body style and model year, all of which are listed separately above. If a number here disagrees with a brochure, the brochure is usually quoting the best available configuration rather than the one being sold.

Frequently Asked Questions About Mulsanne Engine Specs

What engine does the Bentley Mulsanne have?

The Bentley Mulsanne is available with 8 cylinder engines ranging up to 6.8L. Transmission and drivetrain options vary by trim. See the full table above.

Is the Bentley Mulsanne available with all-wheel drive?

Check the drive column in the table above to see available drivetrain configurations.

View full Bentley Mulsanne specs

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