Photo: Mercedes-Benz GLS-Class by Alexander-93, CC BY-SA 4.0, via Wikimedia Commons. It shows the model, not always this exact version.
Mercedes-Benz · model year 2026
2026 Mercedes-Benz GLS450 4matic
SUV · All-Wheel Drive · Hybrid · EPA class: Standard Sport Utility Vehicle 4WD
EPA figures · 2026fueleconomy.gov
21MPG combined
19/24MPG city / highway
$3,900fuel a year
428 g CO₂ per mile 3.0 L 6-cyl turbo supercharged Automatic 9-spd
This car on fueleconomy.gov, read 2 October 2026. Your own figures depend on how and where you drive.
Where it places
- 195 Fuel-efficient large SUVs
Ordered by combined MPG #195 of 488 - 798 2026 cars and trucks
Every car of that year, A to Z #798 of 1,172 - 780 Fuel-efficient AWD and 4WD cars
Ordered by combined MPG #780 of 1,362 - 116 Mercedes-Benz cars
Every model year, newest first #116 of 2,118 - 1502 Gas and hybrid cars by fuel cost
Ordered by fuel a year #1502 of 2,158
Against fuel-efficient large SUVs
Chart average 20 MPGBest 37 MPG
Lowest on the chart $1,800Chart average $3,961
Every figure on record
- Combined MPG
- 21 MPG
- City MPG
- 19 MPG
- Highway MPG
- 24 MPG
- Annual fuel cost
- $3,900
- Tailpipe CO₂
- 428 g per mile
- Model year
- 2026
- Body
- SUV
- EPA size class
- Standard Sport Utility Vehicle 4WD
- Drive
- All-Wheel Drive
- Engine
- 3.0 L 6-cyl turbo supercharged
- Transmission
- Automatic 9-spd
- Fuel
- Gasoline
Efficiency
Running cost
The car
Powertrain
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