2023 head-to-head · Small SUV
2023 Cadillac XT5 vs Mercedes-Benz GLB-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.
On fuel costs these two are nearly tied. Driving 15,000 miles a year with $3.10/gal regular gas and $3.95/gal premium gas, the most efficient 2023 Cadillac XT5 (21 MPG) costs about $2,214 a year to fuel and the 2023 Mercedes-Benz GLB-Class (27 MPG) about $2,194.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Cadillac XT5
- Mercedes-Benz GLB-Class
Side by side
| Cadillac XT5 | Mercedes-Benz GLB-Class | |
|---|---|---|
| $2,214 | Your annual fuel cost | $2,194 |
| 21 MPG | Combined efficiency | 27 MPG |
| 19 MPG | City | 24 MPG |
| 26 MPG | Highway | 32 MPG |
| 419 g/mi | Tailpipe CO₂ (g/mi) | 330 g/mi |
| 4/10 | EPA fuel economy score | 5/10 |
| 4/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Gas |
| Regular gasoline | Fuel | Premium gasoline |
| 3.6L 6-cyl | Engine / motor | 2.0L 4-cyl turbo |
| 9-speed automatic | Transmission | 8-speed dual-clutch |
| FWD | Drivetrain | FWD |
✓ 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.
Cadillac XT5 vs Mercedes-Benz GLB-Class across model years
- Cadillac XT5
- Mercedes-Benz GLB-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 118 2023 small SUVs, the Cadillac XT5 ranks 88th and the Mercedes-Benz GLB-Class 85th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2023 Cadillac XT5 or the 2023 Mercedes-Benz GLB-Class?
Measured by cost to drive, the Mercedes-Benz GLB-Class. The Cadillac XT5 is rated 21 MPG combined and the Mercedes-Benz GLB-Class 27 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2023 Cadillac XT5 vs. the Mercedes-Benz GLB-Class per year?
At 15,000 miles a year with $3.10/gal regular gas and $3.95/gal premium gas, about $2,214 for the Cadillac XT5 and $2,194 for the Mercedes-Benz GLB-Class.
Cadillac XT5 vs Mercedes-Benz GLB-Class in other years
More 2023 comparisons
Cadillac XT5 vs…
Or compare the 2023 Cadillac XT5 with anything else: