2027 head-to-head · Midsize & Large SUV
2027 Mercedes-Benz G-Class 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.
4WD · 4.0L 8-cyl turbo · 9-speed automatic · 15 MPG
AWD · 6.7L 12-cyl turbo · 8-speed automatic · 13 MPG
The 2027 Mercedes-Benz G-Class Hybrid is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $3,950 a year to fuel (15 MPG), versus $4,558 for the 2027 Rolls-Royce Cullinan (13 MPG). That's roughly $608 a year, or about $3,038 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
- Mercedes-Benz G-Class Hybrid
- Rolls-Royce Cullinan
Side by side
| Mercedes-Benz G-Class Hybrid | Rolls-Royce Cullinan | |
|---|---|---|
| $3,950 | Your annual fuel cost | $4,558 |
| 15 MPG | Combined efficiency | 13 MPG |
| 14 MPG | City | 11 MPG |
| 16 MPG | Highway | 18 MPG |
| 608 g/mi | Tailpipe CO₂ (g/mi) | 656 g/mi |
| 2/10 | EPA fuel economy score | 1/10 |
| 2/10 | EPA greenhouse gas score | 2/10 |
| Hybrid | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 4.0L 8-cyl turbo | Engine / motor | 6.7L 12-cyl turbo |
| 9-speed automatic | Transmission | 8-speed automatic |
| 4WD | 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.
Mercedes-Benz G-Class Hybrid vs Rolls-Royce Cullinan across model years
- Mercedes-Benz G-Class 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
Among 58 2027 midsize & large SUVs, the Mercedes-Benz G-Class Hybrid ranks 57th and the Rolls-Royce Cullinan 58th for lowest fuel cost.
The powertrains differ: the Mercedes-Benz G-Class Hybrid is a full hybrid, while the Rolls-Royce Cullinan is a conventional gas model.
Frequently asked questions
Which is more fuel-efficient, the 2027 Mercedes-Benz G-Class Hybrid or the 2027 Rolls-Royce Cullinan?
Measured by cost to drive, the Mercedes-Benz G-Class Hybrid. The Mercedes-Benz G-Class Hybrid is rated 15 MPG combined and the Rolls-Royce Cullinan 13 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2027 Mercedes-Benz G-Class Hybrid vs. the Rolls-Royce Cullinan per year?
At 15,000 miles a year with $3.95/gal premium gas, about $3,950 for the Mercedes-Benz G-Class Hybrid and $4,558 for the Rolls-Royce Cullinan.
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