2025 Mercedes-Benz GLS: Specs, Key Features & Rivals
- Least torque in class
This page brings together the key specs of the GLS from Mercedes-Benz, filed under full-size luxury suv. Going by the specs we track for full-size luxury suvs, the GLS Has the least torque. If you’re considering the GLS, you’ll probably also want to look at X7, Escalade and Escalade IQ.
- Total system output375 hp
- Fuel economy (combined)21 mpg
- Max towing7,700 lb
- Seats7 seats
Key Specifications
Engine & Performance
| Powertrain | Gas (48V mild hybrid) |
|---|---|
| Engine | 3.0L turbo I6 |
| Total system output | 375 hp |
| Torque | 369 lb-ft |
| Transmission | 9-speed automatic |
| Drivetrain | AWD (4MATIC) |
Fuel Economy & Range
| Fuel economy (combined)EPA estimate where available | 21 mpg |
|---|---|
| Fuel economy (city) | 19 mpg |
| Fuel economy (highway) | 24 mpg |
Space & Practicality
| Seats | 7 seats |
|---|
Off-road & Towing
| Max towing | 7,700 lb |
|---|---|
| AWD / 4WD available | Yes |
Safety & Tech
| Basic warranty | 4 yr / 50,000 mi |
|---|
How It Stacks Up in the Full-Size Luxury SUV Class
Against the class average, the GLS is 7.3% lower on total system output. Relative to the class average, the GLS reads 10% higher on fuel economy (combined). Measured on seats, the GLS sits 3.7% over the average for similar models.
Compare GLS With Its Rivals
Other models in the same class:
Frequently Asked Questions
What are the main alternatives to the GLS?
The GLS goes up against X7, Escalade, Escalade IQ and QX80.