2021 head-to-head · Midsize & Large SUV
2021 BMW X7 Hybrid vs Mercedes-Benz GLS-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.
AWD · 3.0L 6-cyl turbo · 8-speed automatic · 21 MPG
On fuel costs these two are nearly tied. Driving 15,000 miles a year with $3.95/gal premium gas, the most efficient 2021 BMW X7 Hybrid (21 MPG) costs about $2,821 a year to fuel and the 2021 Mercedes-Benz GLS-Class Hybrid (21 MPG) about $2,821.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- BMW X7 Hybrid
- Mercedes-Benz GLS-Class Hybrid
Side by side
| BMW X7 Hybrid | Mercedes-Benz GLS-Class Hybrid | |
|---|---|---|
| $2,821 | Your annual fuel cost | $2,821 |
| 21 MPG | Combined efficiency | 21 MPG |
| 19 MPG | City | 20 MPG |
| 24 MPG | Highway | 24 MPG |
| 412 g/mi | Tailpipe CO₂ (g/mi) | 414 g/mi |
| 4/10 | EPA fuel economy score | 4/10 |
| 4/10 | EPA greenhouse gas score | 4/10 |
| Hybrid | 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 |
| AWD | 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.
BMW X7 Hybrid vs Mercedes-Benz GLS-Class Hybrid across model years
- BMW X7 Hybrid
- Mercedes-Benz GLS-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 65 2021 midsize & large SUVs, the BMW X7 Hybrid ranks 42nd and the Mercedes-Benz GLS-Class Hybrid 41st for lowest fuel cost.
Frequently asked questions
How much does it cost to fuel the 2021 BMW X7 Hybrid vs. the Mercedes-Benz GLS-Class Hybrid per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,821 for the BMW X7 Hybrid and $2,821 for the Mercedes-Benz GLS-Class Hybrid.
BMW X7 Hybrid vs Mercedes-Benz GLS-Class Hybrid in other years
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