2020 Mercedes-Benz GLS-Class: GLS580 4matic · 4.0L · 4WD · 9-speed automatic · Hybrid
One configuration of the 2020 Mercedes-Benz GLS-Class as listed by our sources. Every figure below carries its source.
| Specification | Value | Source |
|---|---|---|
| Engine | 4.0L 8-cylinder turbocharged (SIDI; Mild Hybrid) | EPA fueleconomy.gov |
| Displacement | 4.0 L | EPA fueleconomy.gov |
| Cylinders | 8 | EPA fueleconomy.gov |
| Fuel type | Hybrid | EPA fueleconomy.gov |
| Transmission | 9-speed automatic | EPA fueleconomy.gov |
| Drivetrain | 4WD | EPA fueleconomy.gov |
| Combined economy | 18 mpg (13.1 L/100 km) | EPA fueleconomy.gov |
| City economy | 16 mpg (14.7 L/100 km) | EPA fueleconomy.gov |
| Highway economy | 21 mpg (11.2 L/100 km) | EPA fueleconomy.gov |
Provenance & verification
- EPA fueleconomy.gov · US Government public data
Source checked: October 12, 2026
Data verified: October 12, 2026