2027 head-to-head · Midsize & Large SUV
2027 Bentley Bentayga vs Rolls-Royce Cullinan
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
AWD · 4.0L 8-cyl turbo · 8-speed automatic · 16 MPG
AWD · 6.7L 12-cyl turbo · 8-speed automatic · 13 MPG
The 2027 Bentley Bentayga is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $3,703 a year to fuel (16 MPG), versus $4,558 for the 2027 Rolls-Royce Cullinan (13 MPG). That's roughly $855 a year, or about $4,273 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 Bentayga
- Rolls-Royce Cullinan
Side by side
| Bentley Bentayga | Rolls-Royce Cullinan | |
|---|---|---|
| $3,703 | Your annual fuel cost | $4,558 |
| 16 MPG | Combined efficiency | 13 MPG |
| 14 MPG | City | 11 MPG |
| 21 MPG | Highway | 18 MPG |
| 553 g/mi | Tailpipe CO₂ (g/mi) | 656 g/mi |
| 3/10 | EPA fuel economy score | 1/10 |
| 3/10 | EPA greenhouse gas score | 2/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 4.0L 8-cyl turbo | Engine / motor | 6.7L 12-cyl turbo |
| 8-speed automatic | Transmission | 8-speed automatic |
| AWD | Drivetrain | AWD |
✓ 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 Bentayga vs Rolls-Royce Cullinan across model years
- Bentley Bentayga
- Rolls-Royce Cullinan
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
Among 58 2027 midsize & large SUVs, the Bentley Bentayga ranks 54th and the Rolls-Royce Cullinan 58th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2027 Bentley Bentayga or the 2027 Rolls-Royce Cullinan?
Measured by cost to drive, the Bentley Bentayga. The Bentley Bentayga is rated 16 MPG combined and the Rolls-Royce Cullinan 13 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2027 Bentley Bentayga vs. the Rolls-Royce Cullinan per year?
At 15,000 miles a year with $3.95/gal premium gas, about $3,703 for the Bentley Bentayga and $4,558 for the Rolls-Royce Cullinan.
Bentley Bentayga vs Rolls-Royce Cullinan in other years
More 2027 comparisons
Bentley Bentayga vs…
Or compare the 2027 Bentley Bentayga with anything else: