2015 head-to-head · Small SUV
2015 Lexus RX Hybrid vs Mercedes-Benz GLK-Class Diesel
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
4WD · 2.1L 4-cyl turbo · 7-speed automatic · 27 MPG
On fuel costs these two are nearly tied. Driving 15,000 miles a year with $3.95/gal premium gas and $3.70/gal diesel fuel, the most efficient 2015 Lexus RX Hybrid (29 MPG) costs about $2,043 a year to fuel and the 2015 Mercedes-Benz GLK-Class Diesel (27 MPG) about $2,056.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Lexus RX Hybrid
- Mercedes-Benz GLK-Class Diesel
Side by side
| Lexus RX Hybrid | Mercedes-Benz GLK-Class Diesel | |
|---|---|---|
| $2,043 | Your annual fuel cost | $2,056 |
| 29 MPG | Combined efficiency | 27 MPG |
| 31 MPG | City | 24 MPG |
| 28 MPG | Highway | 32 MPG |
| 301 g/mi | Tailpipe CO₂ (g/mi) | 371 g/mi |
| 7/10 | EPA fuel economy score | 7/10 |
| 7/10 | EPA greenhouse gas score | 6/10 |
| Hybrid | Powertrain | Diesel |
| Premium gasoline | Fuel | Diesel |
| 3.5L 6-cyl | Engine / motor | 2.1L 4-cyl turbo |
| CVT | Transmission | 7-speed automatic |
| FWD | 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.
Lexus RX Hybrid vs Mercedes-Benz GLK-Class Diesel across model years
- Lexus RX Hybrid
- Mercedes-Benz GLK-Class Diesel
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 Lexus RX Hybrid ranks 34th and the Mercedes-Benz GLK-Class Diesel 35th for lowest fuel cost.
The powertrains differ: the Lexus RX Hybrid is a full hybrid, while the Mercedes-Benz GLK-Class Diesel is a diesel.
Frequently asked questions
Which is more fuel-efficient, the 2015 Lexus RX Hybrid or the 2015 Mercedes-Benz GLK-Class Diesel?
Measured by cost to drive, the Lexus RX Hybrid. The Lexus RX Hybrid is rated 29 MPG combined and the Mercedes-Benz GLK-Class Diesel 27 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2015 Lexus RX Hybrid vs. the Mercedes-Benz GLK-Class Diesel per year?
At 15,000 miles a year with $3.95/gal premium gas and $3.70/gal diesel fuel, about $2,043 for the Lexus RX Hybrid and $2,056 for the Mercedes-Benz GLK-Class Diesel.
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