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Rolls-Royce Dawn Fuel Economy (MPG)

What is the real-world gas mileage of a 2021 Rolls-Royce Dawn?

The 2021 Rolls-Royce Dawn gets up to 15 MPG combined (12 city / 19 highway) in EPA testing.

Latest model year (2021):

The Rolls-Royce Dawn gets up to 14 MPG combined (12 city / 18 highway) in the Auto (S8), 12 cyl, 6.6 L trim.

Verifiedfueleconomy.gov · Verified August 11, 2026
OverviewMPGEngine SpecsFuel CostTransmissionDrivetrainVehicle ClassMaintenanceDimensionsCurb Weight

Rolls-Royce Dawn MPG — All Years

YearTrimEngineFuelCity (MPG)Hwy (MPG)Combined (MPG)
2021Auto (S8), 12 cyl, 6.6 L12 6.6LPremium Gasoline121814
2020Auto (S8), 12 cyl, 6.6 L12 6.6LPremium Gasoline121814
2019Auto (S8), 12 cyl, 6.6 L12 6.6LPremium Gasoline121814
2018Auto (S8), 12 cyl, 6.6 L12 6.6LPremium Gasoline121814
2017Auto (S8), 12 cyl, 6.6 L12 6.6LPremium Gasoline121914
2016Auto (S8), 12 cyl, 6.6 L12 6.6LPremium Gasoline121915

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.

Rolls-Royce Dawn data analysis

How Rolls-Royce Dawn combined fuel economy varies

Across 6 configurations recorded for the 2016 through 2021 Rolls-Royce Dawn, combined fuel economy runs from 14 MPG to 15 MPG. The strongest figure belongs to the 2016 Rolls-Royce Dawn (Auto (S8), 12 cyl, 6.6 L) at 15 MPG, and the weakest to the 2021 car (Auto (S8), 12 cyl, 6.6 L) at 14 MPG — a spread of 7%. The narrow spread means any year of the Rolls-Royce Dawn 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 2021

Average combined fuel economy for the 2021 Rolls-Royce Dawn is 14 MPG, against 14 MPG for the 2020 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 Rolls-Royce Dawn data

This page lists every 2016 through 2021 Rolls-Royce Dawn record we hold for this measurement — 6 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 Rolls-Royce Dawn 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 Rolls-Royce Dawn 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.

Official Factory Specs vs. AutoSpecData Expert Benchmarks

The EPA highway loop never holds interstate speed. Here is what the same engine does when you sit on the cruise control.

Cruise speedEPA highway specAutoSpecData adjusted MPGFuel you lose
60 mph19 MPG19 MPG0%
65 mph19 MPG17.7 MPG7%
70 mph19 MPG16.5 MPG13%
75 mph19 MPG15.4 MPG19%
80 mph19 MPG14.3 MPG25%

Our Real-World Speed MPG Adjuster re-scales the Rolls-Royce Dawn EPA highway result with a quadratic drag term (mpg = hwy ÷ (1 + k·(v² − 60²)/60²), k = 0.55 for trucks, SUVs and vans, 0.42 for cars). Wind, roof racks, and a heavy right foot make it worse, never better.

Frequently Asked Questions About Dawn MPG

What is the MPG of the Rolls-Royce Dawn?

The Rolls-Royce Dawn gets up to 15 MPG combined (12 city / 19 highway) in the 2021 model year. Fuel economy varies by engine and trim — see the full table above for details.

Which Rolls-Royce Dawn trim has the best fuel economy?

The Auto (S8), 12 cyl, 6.6 L trim offers the best combined fuel economy at 15 MPG. Smaller engines and front-wheel-drive configurations typically achieve the highest MPG.

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