2015 head-to-head · Midsize & Large SUV
2015 Audi Q7 vs Mercedes-Benz GL-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 · 3.0L 6-cyl supercharged · 8-speed automatic · 18 MPG
The 2015 Mercedes-Benz GL-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 $3,292 for the 2015 Audi Q7 (18 MPG). That's roughly $173 a year, or about $866 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
- Audi Q7
- Mercedes-Benz GL-Class
Side by side
| Audi Q7 | Mercedes-Benz GL-Class | |
|---|---|---|
| $3,292 | Your annual fuel cost | $3,118 |
| 18 MPG | Combined efficiency | 19 MPG |
| 16 MPG | City | 17 MPG |
| 22 MPG | Highway | 21 MPG |
| 497 g/mi | Tailpipe CO₂ (g/mi) | 479 g/mi |
| 4/10 | EPA fuel economy score | 4/10 |
| 4/10 | EPA greenhouse gas score | 4/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 3.0L 6-cyl supercharged | Engine / motor | 3.0L 6-cyl turbo |
| 8-speed automatic | Transmission | 7-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.
Audi Q7 vs Mercedes-Benz GL-Class across model years
- Audi Q7
- Mercedes-Benz GL-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 45 2015 midsize & large SUVs, the Audi Q7 ranks 40th and the Mercedes-Benz GL-Class 39th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2015 Audi Q7 or the 2015 Mercedes-Benz GL-Class?
Measured by cost to drive, the Mercedes-Benz GL-Class. The Audi Q7 is rated 18 MPG combined and the Mercedes-Benz GL-Class 19 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2015 Audi Q7 vs. the Mercedes-Benz GL-Class per year?
At 15,000 miles a year with $3.95/gal premium gas, about $3,292 for the Audi Q7 and $3,118 for the Mercedes-Benz GL-Class.
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