2015 head-to-head · Midsize Car vs Compact Car

2015 Bentley Mulsanne vs Rolls-Royce Phantom

MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.

Swap sides
✓ Cheaper to run
$4,558/ year to fuel
13 MPG

RWD · 6.8L 8-cyl turbo · 8-speed automatic · 13 MPG

✓ Cheaper to run
$4,232/ year to fuel
14 MPG

RWD · 6.7L 12-cyl · 8-speed automatic · 14 MPG

The 2015 Rolls-Royce Phantom is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $4,232 a year to fuel (14 MPG), versus $4,558 for the 2015 Bentley Mulsanne (13 MPG). That's roughly $326 a year, or about $1,628 over five years.

Your numbers

Change these to match your driving and local prices. Every figure and chart on this page updates.

Fuel cost over 10 years

  • Bentley Mulsanne
  • Rolls-Royce Phantom

Side by side

Bentley MulsanneRolls-Royce Phantom
$4,558 Your annual fuel cost $4,232
13 MPG Combined efficiency 14 MPG
11 MPG City 11 MPG
18 MPG Highway 19 MPG
101 cu ft Passenger volume 97 cu ft
11 cu ft Cargo volume 11 cu ft
688 g/mi Tailpipe CO₂ (g/mi) 637 g/mi
1/10 EPA fuel economy score 2/10
1/10 EPA greenhouse gas score 2/10
Gas Powertrain Gas
Premium gasoline Fuel Premium gasoline
6.8L 8-cyl turbo Engine / motor 6.7L 12-cyl
8-speed automatic Transmission 8-speed automatic
RWD Drivetrain RWD

✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.

Bentley Mulsanne vs Rolls-Royce Phantom across model years

  • Bentley Mulsanne
  • Rolls-Royce Phantom

Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.

How they differ

Per EPA interior volume figures, the Bentley Mulsanne has more passenger space (101 vs. 97 cu ft).

Frequently asked questions

Which is more fuel-efficient, the 2015 Bentley Mulsanne or the 2015 Rolls-Royce Phantom?

Measured by cost to drive, the Rolls-Royce Phantom. The Bentley Mulsanne is rated 13 MPG combined and the Rolls-Royce Phantom 14 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2015 Bentley Mulsanne vs. the Rolls-Royce Phantom per year?

At 15,000 miles a year with $3.95/gal premium gas, about $4,558 for the Bentley Mulsanne and $4,232 for the Rolls-Royce Phantom.

Bentley Mulsanne vs Rolls-Royce Phantom in other years

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