2025 head-to-head · Midsize & Large SUV
2025 INEOS Automotive Grenadier vs Mercedes-Benz G-Class Hybrid
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
The 2025 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 $3,292 a year to fuel (18 MPG), versus $3,950 for the 2025 INEOS Automotive Grenadier (15 MPG). That's roughly $658 a year, or about $3,292 over five years.
Your numbers
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Fuel cost over 10 years
- INEOS Automotive Grenadier
- Mercedes-Benz G-Class Hybrid
Side by side
| INEOS Automotive Grenadier | Mercedes-Benz G-Class Hybrid | |
|---|---|---|
| $3,950 | Your annual fuel cost | $3,292 |
| 15 MPG | Combined efficiency | 18 MPG |
| 15 MPG | City | 17 MPG |
| 15 MPG | Highway | 19 MPG |
| 592 g/mi | Tailpipe CO₂ (g/mi) | 490 g/mi |
| 2/10 | EPA fuel economy score | 4/10 |
| 2/10 | EPA greenhouse gas score | 4/10 |
| Gas | Powertrain | Hybrid |
| Premium gasoline | Fuel | Premium gasoline |
| 3.0L 6-cyl turbo | Engine / motor | 3.0L 6-cyl turbo |
| 8-speed automatic | Transmission | 9-speed automatic |
| 4WD | Drivetrain | 4WD |
✓ 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.
INEOS Automotive Grenadier vs Mercedes-Benz G-Class Hybrid across model years
- INEOS Automotive Grenadier
- Mercedes-Benz G-Class Hybrid
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 94 2025 midsize & large SUVs, the INEOS Automotive Grenadier ranks 92nd and the Mercedes-Benz G-Class Hybrid 81st for lowest fuel cost.
The powertrains differ: the INEOS Automotive Grenadier is a conventional gas model, while the Mercedes-Benz G-Class Hybrid is a full hybrid.
Frequently asked questions
Which is more fuel-efficient, the 2025 INEOS Automotive Grenadier or the 2025 Mercedes-Benz G-Class Hybrid?
Measured by cost to drive, the Mercedes-Benz G-Class Hybrid. The INEOS Automotive Grenadier is rated 15 MPG combined and the Mercedes-Benz G-Class Hybrid 18 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2025 INEOS Automotive Grenadier vs. the Mercedes-Benz G-Class Hybrid per year?
At 15,000 miles a year with $3.95/gal premium gas, about $3,950 for the INEOS Automotive Grenadier and $3,292 for the Mercedes-Benz G-Class Hybrid.
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