Mercedes-Benz
GLS600 4matic Maybach
U.S. fuel economy and specifications from the EPA.
17Best combined MPG2022 model year
2021–2026Model years6 with EPA ratings
6Rated configurationsDrive, transmission and engine
4 LEngine sizeDisplacement
Best combined MPG by model year
The highest EPA rating among each year's configurations.
2021 16 MPG
2022 17 MPG
2023 17 MPG
2024 16 MPG
2025 15 MPG
2026 15 MPG
1 configuration.
All-Wheel Drive · Automatic 9-spd
Premium gasoline · Standard Sport Utility Vehicle 4WD
- Combined MPG
- 15
- Engine displacement
- 4.0 L
- Cylinders
- 8
All-Wheel Drive · Automatic 9-spd
Premium gasoline · Standard Sport Utility Vehicle 4WD
- Combined MPG
- 15
- Engine displacement
- 4.0 L
- Cylinders
- 8
2025 EPA test-car reference
Engine ratings from the EPA test-car reference.
| Engine rated hp | Displacement | Transmission | Drive |
|---|---|---|---|
| 550 | 4.0 L | Automatic · 9 gears | All Wheel Drive |
All-Wheel Drive · Automatic 9-spd
Premium gasoline · Standard Sport Utility Vehicle 4WD
- Combined MPG
- 16
- Engine displacement
- 4.0 L
- Cylinders
- 8
All-Wheel Drive · Automatic 9-spd
Premium gasoline · Standard Sport Utility Vehicle 4WD
- Combined MPG
- 17
- Engine displacement
- 4.0 L
- Cylinders
- 8
All-Wheel Drive · Automatic 9-spd
Premium gasoline · Standard Sport Utility Vehicle 4WD
- Combined MPG
- 17
- Engine displacement
- 4.0 L
- Cylinders
- 8
4-Wheel Drive · Automatic 9-spd
Premium gasoline · Standard Sport Utility Vehicle 4WD
- Combined MPG
- 16
- Engine displacement
- 4.0 L
- Cylinders
- 8