Mercedes-Benz GLB-Class vs Mitsubishi Outlander
The Mercedes-Benz GLB-Class and Mitsubishi Outlander are evenly matched on fuel economy — both peak at 28 mpg combined — so the decision comes down to engine choice, drivetrain, and class.
Across 4 measured categories, the Mitsubishi Outlander leads in 3. Figures are EPA test data, not manufacturer claims.
2020–2026
Mercedes-Benz GLB-Class
Small Sport Utility Vehicle 4WD · 20 configurations
2015–2027
Mitsubishi Outlander
Small Sport Utility Vehicle 4WD · 88 configurations
Head-to-head specifications
| Metric | Mercedes-Benz GLB-Class | Mitsubishi Outlander |
|---|---|---|
| Best combined MPG | 28 mpg | 28 mpg |
| Best city MPG | 25 mpg | 27 mpg ✓ |
| Best highway MPG | 33 mpg ✓ | 32 mpg |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $2,700 | $2,200 ✓ |
| Lowest CO2 output | 311 g/mi | 97 g/mi ✓ |
| Engines offered | SIDI; Mild Hybrid, SIDI | 2.4, 2.0, PHEV, SIDI & PFI; Mild Hybrid |
| Transmissions | Automatic (AM8) | Automatic (AV-S6), Automatic (A1), Automatic (AV-S8) |
| Drivetrains | Front-Wheel Drive, All-Wheel Drive, 4-Wheel Drive | 4-Wheel Drive, Front-Wheel Drive, All-Wheel Drive |
| Fuel types | Premium | Regular, Regular Gas and Electricity, Premium |
| EPA class | Small Sport Utility Vehicle 4WD | Small Sport Utility Vehicle 4WD |
| Years covered | 2020–2026 | 2015–2027 |
| Configurations on record | 20 | 88 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
GLB-Class vs Outlander: common questions
Which is better on gas, the Mercedes-Benz GLB-Class or the Mitsubishi Outlander?
The Mercedes-Benz GLB-Class and Mitsubishi Outlander are evenly matched on fuel economy — both peak at 28 mpg combined — so the decision comes down to engine choice, drivetrain, and class.
Which costs less to run per year?
By EPA estimates at 15,000 miles a year, the Mitsubishi Outlander runs about $2,200 a year in fuel at its most efficient configuration, versus about $2,700 for the Mercedes-Benz GLB-Class — a difference of roughly $500 per year.
What engines do the GLB-Class and Outlander offer?
Mercedes-Benz GLB-Class: SIDI; Mild Hybrid, SIDI. Mitsubishi Outlander: 2.4, 2.0, PHEV, SIDI & PFI; Mild Hybrid.
Are they in the same vehicle class?
Yes — the EPA classifies both the Mercedes-Benz GLB-Class and the Mitsubishi Outlander as Small Sport Utility Vehicle 4WD, so they compete directly.
More GLB-Class comparisons
Comparison id: mercedes-benz-glb-class-vs-mitsubishi-outlander