For vendors
AdvertiseTop spots, featured rows, home sponsor Get listedAdd a product we don't cover yet Claim a listingFree: verify the domain, then correct your page Vendor dashboardNumbers, orders and placements
CarCodyAdvertise
Vendor dashboard
2026 Mercedes-Benz GLS450 4matic
Fuel economy & running costsHybrid
#116 of 2,118 · Mercedes-Benz cars

2026 Mercedes-BenzGLS450 4matic

Standard Sport Utility Vehicle 4WD · All-Wheel Drive · 3.0 L 6-cyl turbo supercharged

21MPGcombined
19city
24highway
A year of fuel$3,900
CO₂ from the tailpipe428 g/mi
Figures from the EPA label (fueleconomy.gov), the same as on the car's window sticker.
See it on fueleconomy.gov

Against the 2,118 Mercedes-Benz cars

Combined MPG 21 MPGbest 33 · avg 20
Annual fuel cost $3,900best $600 · avg $4,245

Bars are scaled to the best in the list; the mark shows the list average. Lower is better for fuel cost; higher is better for the rest. All figures are the EPA's.

Summary

2026 Mercedes-Benz GLS450 4matic by Mercedes-Benz. The figures below are from US EPA fueleconomy.gov, with the page each one came from.

Details

Model year
2026fueleconomy.gov · 3 Oct 2026

Efficiency

Combined MPG
21fueleconomy.gov · 3 Oct 2026
City MPG
19fueleconomy.gov · 3 Oct 2026
Highway MPG
24fueleconomy.gov · 3 Oct 2026

Running cost

Annual fuel cost
$3,900fueleconomy.gov · 3 Oct 2026
CO₂ (tailpipe)
428 g/mifueleconomy.gov · 3 Oct 2026

Car

Body
SUVfueleconomy.gov · 3 Oct 2026
EPA class
Standard Sport Utility Vehicle 4WDfueleconomy.gov · 3 Oct 2026
Drive
All-Wheel Drivefueleconomy.gov · 3 Oct 2026

Powertrain

Engine
3.0 L 6-cyl turbo superchargedfueleconomy.gov · 3 Oct 2026
Transmission
Automatic 9-spdfueleconomy.gov · 3 Oct 2026
Fuel
Gasolinefueleconomy.gov · 3 Oct 2026

More Mercedes-Benz cars

See the list
Mercedes-Benz #1 2027 · Mercedes-Benz AMG CLE53 4matic Plus (convertible) 22Combined MPG $3,750Fuel / year Mercedes-Benz #2 2027 · Mercedes-Benz AMG CLE53 4matic Plus (coupe) 23Combined MPG $3,550Fuel / year #3 2027 · Mercedes-Benz AMG G63 15Combined MPG $5,500Fuel / year #4 2027 · Mercedes-Benz AMG GLC53 4matic Plus 22Combined MPG $3,750Fuel / year #5 2027 · Mercedes-Benz AMG GLC53 4matic Plus (coupe) 22Combined MPG $3,750Fuel / year #6 2027 · Mercedes-Benz AMG GT 43 (coupe) 22Combined MPG $3,750Fuel / year

Listed on CarCody

Sources