2023 head-to-head · Midsize Car vs Wagon
2023 Bentley Flying Spur Plug-in Hybrid 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 · 2.9L 6-cyl turbo · 8-speed dual-clutch · 46 MPGe + 19 MPG
AWD · 6.7L 12-cyl turbo · 8-speed automatic · 14 MPG
The 2023 Bentley Flying Spur Plug-in Hybrid is the cheaper one to run. Driving 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, it costs about $2,588 a year to fuel (46 MPGe + 19 MPG), versus $4,232 for the 2023 Rolls-Royce Cullinan (14 MPG). That's roughly $1,644 a year, or about $8,218 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 Flying Spur Plug-in Hybrid
- Rolls-Royce Cullinan
Side by side
| Bentley Flying Spur Plug-in Hybrid | Rolls-Royce Cullinan | |
|---|---|---|
| $2,588 | Your annual fuel cost | $4,232 |
| 46 MPGe + 19 MPG | Combined efficiency | 14 MPG |
| 43 MPGe / 17 MPG | City | 12 MPG |
| 50 MPGe / 22 MPG | Highway | 19 MPG |
| 74 kWh | Electricity use (kWh/100 mi) | — |
| 430 mi | Driving range | — |
| 21 mi | All-electric range | — |
| 102 cu ft | Passenger volume | 113 cu ft |
| 13 cu ft | Cargo volume | 21 cu ft |
| 251 g/mi | Tailpipe CO₂ (g/mi) | 626 g/mi |
| 5/10 | EPA fuel economy score | 2/10 |
| 7/10 | EPA greenhouse gas score | 2/10 |
| 3 hrs | Charge time at 240V | — |
| Plug-in hybrid | Powertrain | Gas |
| Premium gas + electricity | Fuel | Premium gasoline |
| 2.9L 6-cyl turbo | Engine / motor | 6.7L 12-cyl turbo |
| 8-speed dual-clutch | 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 Flying Spur Plug-in Hybrid vs Rolls-Royce Cullinan across model years
- Bentley Flying Spur Plug-in Hybrid
- 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
Per EPA interior volume figures, the Rolls-Royce Cullinan has more passenger space (113 vs. 102 cu ft); the Rolls-Royce Cullinan has more cargo space (21 vs. 13 cu ft).
The powertrains differ: the Bentley Flying Spur Plug-in Hybrid is a plug-in hybrid, while the Rolls-Royce Cullinan is a conventional gas model.
Frequently asked questions
Which is more fuel-efficient, the 2023 Bentley Flying Spur Plug-in Hybrid or the 2023 Rolls-Royce Cullinan?
Measured by cost to drive, the Bentley Flying Spur Plug-in Hybrid. The Bentley Flying Spur Plug-in Hybrid is rated 46 MPGe + 19 MPG combined and the Rolls-Royce Cullinan 14 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2023 Bentley Flying Spur Plug-in Hybrid vs. the Rolls-Royce Cullinan per year?
At 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, about $2,588 for the Bentley Flying Spur Plug-in Hybrid and $4,232 for the Rolls-Royce Cullinan.
Which has more cargo space?
The Rolls-Royce Cullinan, with 21 cu ft of luggage volume versus 13 cu ft (EPA interior volume index).
Bentley Flying Spur Plug-in Hybrid vs Rolls-Royce Cullinan in other years
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