2017 head-to-head · Midsize & Large SUV
2017 Bentley Bentayga vs Mercedes-Benz GLS-Class
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 · 6.0L 12-cyl turbo · 8-speed automatic · 15 MPG
The 2017 Mercedes-Benz GLS-Class is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $3,118 a year to fuel (19 MPG), versus $3,950 for the 2017 Bentley Bentayga (15 MPG). That's roughly $832 a year, or about $4,158 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
- Mercedes-Benz GLS-Class
Side by side
| Bentley Bentayga | Mercedes-Benz GLS-Class | |
|---|---|---|
| $3,950 | Your annual fuel cost | $3,118 |
| 15 MPG | Combined efficiency | 19 MPG |
| 12 MPG | City | 17 MPG |
| 19 MPG | Highway | 22 MPG |
| 596 g/mi | Tailpipe CO₂ (g/mi) | 477 g/mi |
| 2/10 | EPA fuel economy score | 4/10 |
| 2/10 | EPA greenhouse gas score | 4/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 6.0L 12-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.
Bentley Bentayga vs Mercedes-Benz GLS-Class across model years
- Bentley Bentayga
- Mercedes-Benz GLS-Class
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 44 2017 midsize & large SUVs, the Bentley Bentayga ranks 43rd and the Mercedes-Benz GLS-Class 38th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2017 Bentley Bentayga or the 2017 Mercedes-Benz GLS-Class?
Measured by cost to drive, the Mercedes-Benz GLS-Class. The Bentley Bentayga is rated 15 MPG combined and the Mercedes-Benz GLS-Class 19 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2017 Bentley Bentayga vs. the Mercedes-Benz GLS-Class per year?
At 15,000 miles a year with $3.95/gal premium gas, about $3,950 for the Bentley Bentayga and $3,118 for the Mercedes-Benz GLS-Class.
Bentley Bentayga vs Mercedes-Benz GLS-Class in other years
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