2015 head-to-head · Small SUV
2015 BMW X3 vs Mercedes-Benz GLK-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.
The 2015 BMW X3 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,469 a year to fuel (24 MPG), versus $2,693 for the 2015 Mercedes-Benz GLK-Class (22 MPG). That's roughly $224 a year, or about $1,122 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
- BMW X3
- Mercedes-Benz GLK-Class
Side by side
| BMW X3 | Mercedes-Benz GLK-Class | |
|---|---|---|
| $2,469 | Your annual fuel cost | $2,693 |
| 24 MPG | Combined efficiency | 22 MPG |
| 21 MPG | City | 19 MPG |
| 28 MPG | Highway | 26 MPG |
| 375 g/mi | Tailpipe CO₂ (g/mi) | 413 g/mi |
| 6/10 | EPA fuel economy score | 5/10 |
| 6/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 2.0L 4-cyl turbo | Engine / motor | 3.5L 6-cyl |
| 8-speed automatic | Transmission | 7-speed automatic |
| RWD | Drivetrain | RWD |
✓ 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 X3 vs Mercedes-Benz GLK-Class across model years
- BMW X3
- Mercedes-Benz GLK-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 60 2015 small SUVs, the BMW X3 ranks 46th and the Mercedes-Benz GLK-Class 55th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2015 BMW X3 or the 2015 Mercedes-Benz GLK-Class?
Measured by cost to drive, the BMW X3. The BMW X3 is rated 24 MPG combined and the Mercedes-Benz GLK-Class 22 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2015 BMW X3 vs. the Mercedes-Benz GLK-Class per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,469 for the BMW X3 and $2,693 for the Mercedes-Benz GLK-Class.
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