2021 · Midsize & Large SUV · Hybrid

2021 Mercedes-Benz GLS-Class Hybrid MPG & fuel economy

The 2021 Mercedes-Benz GLS-Class Hybrid is a midsize or large SUV offered in 4 EPA-rated configurations. The most efficient version returns 21 MPG combined (20 city / 24 highway) on premium gasoline. Across the lineup, combined ratings range from 16 to 21 MPG. Efficiency is unchanged from the 2020 model. Among 65 midsize & large SUVs rated for 2021, it ranks 41st for lowest fuel cost. At 15,000 miles a year with $3.95/gal premium gas, it costs about $2,821 a year to fuel.

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Combined 21 MPG 20 MPG city · 24 MPG hwy
Driving range — not published for this model
Your fuel cost $2,821 15,000 mi/yr · $18.81 per 100 mi
Class rank, 2021 #41 of 65 Midsize & Large SUVs by fuel cost

What will it cost you?

Your mileage and prices are saved and used across the site.

Fuel average

The 2021 Mercedes-Benz GLS-Class Hybrid's fuel average is 8.9 km/L (11.2 L/100 km), or 21 MPG combined: 8.5 km/L in the city and 10.2 km/L on the highway.

MPGkm/LL/100 km
City208.511.8
Highway2410.29.8
Combined218.911.2

How it ranks among 2021 Midsize & Large SUVs

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  1. 1Tesla Model X105 MPGe $864
  2. 2Audi e-tron78 MPGe $1,172
  3. 3Toyota Highlander Hybrid36 MPG $1,292
  4. 4Ford Explorer Hybrid27 MPG $1,722
  5. 5Lincoln Aviator Plug-in Hybrid56 MPGe + 23 MPG $1,833
  6. 41Mercedes-Benz GLS-Class Hybrid21 MPG $2,821
  7. 65Lamborghini Urus14 MPG $4,232
2021 GLS-Class HybridOther midsize & large SUVsClass median: $2,583/yr

Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.

GLS-Class Hybrid MPG across model years

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4 EPA-rated configurations

ConfigurationTypeCityHwyCombinedRangeYour cost / yr
4WD · 3.0L 6-cyl turbo · 9-speed automatic
GLS450 4matic		 Hybrid 20 MPG 24 MPG 21 MPG — $2,821
4WD · 4.0L 8-cyl turbo · 9-speed automatic
GLS580 4matic		 Hybrid 16 MPG 21 MPG 18 MPG — $3,292
4WD · 4.0L 8-cyl turbo · 9-speed automatic
AMG GLS63 4matic Plus		 Hybrid 14 MPG 18 MPG 16 MPG — $3,703
4WD · 4.0L 8-cyl turbo · 9-speed automatic
GLS600 4matic Maybach		 Hybrid 15 MPG 19 MPG 16 MPG — $3,703

Specs (most efficient configuration)

Fuel
Premium gasoline
Engine / motor
3.0L 6-cyl turbo
Transmission
9-speed automatic
Drivetrain
4WD
Tailpipe CO₂
414 g/mi
EPA fuel economy score
4/10
EPA greenhouse gas score
4/10

2021 Mercedes-Benz GLS-Class Hybrid vs. rivals

vs Land Rover Discovery 21 MPG · $2,821/yr Same fuel cost vs Land Rover Discovery Hybrid 21 MPG · $2,821/yr Same fuel cost vs Audi Q7 21 MPG · $2,821/yr Same fuel cost vs BMW X7 Hybrid 21 MPG · $2,821/yr Same fuel cost vs Land Rover Range Rover Plug-in Hybrid 42 MPGe + 19 MPG · $2,694/yr Range Rover Plug-in Hybrid saves $128/yr vs Porsche Cayenne 20 MPG · $2,962/yr GLS-Class Hybrid saves $141/yr vs Audi Q7 Hybrid 20 MPG · $2,962/yr GLS-Class Hybrid saves $141/yr vs Audi Q8 20 MPG · $2,962/yr GLS-Class Hybrid saves $141/yr

Compare the 2021 GLS-Class Hybrid

With any other car from any year, including other GLS-Class Hybrid model years. Type a year to jump, e.g. "2015 Accord".

Frequently asked questions

What is the gas mileage of the 2021 Mercedes-Benz GLS-Class Hybrid?

Up to 21 MPG combined (20 city / 24 highway); ratings range from 16 to 21 MPG depending on configuration.

What fuel does the 2021 Mercedes-Benz GLS-Class Hybrid use?

Premium gasoline (premium is required or recommended by the manufacturer).

What is the fuel average in km/L for the 2021 Mercedes-Benz GLS-Class Hybrid?

The 2021 Mercedes-Benz GLS-Class Hybrid's fuel average is 8.9 km/L (11.2 L/100 km), or 21 MPG combined: 8.5 km/L in the city and 10.2 km/L on the highway.

How much does it cost to fuel the 2021 Mercedes-Benz GLS-Class Hybrid per year?

About $2,821 at 15,000 miles a year with $3.95/gal premium gas, or $18.81 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.

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