2027 · Midsize & Large SUV · Hybrid
2027 Mercedes-Benz GLS-Class Hybrid MPG & fuel economy
The 2027 Mercedes-Benz GLS-Class Hybrid is a midsize or large SUV with one EPA-rated configuration. The most efficient version returns 21 MPG combined (19 city / 24 highway) on premium gasoline. Efficiency is unchanged from the 2026 model. Among 58 midsize & large SUVs rated for 2027, it ranks 48th 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.
What will it cost you?
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Fuel average
The 2027 Mercedes-Benz GLS-Class Hybrid's fuel average is 8.9 km/L (11.2 L/100 km), or 21 MPG combined: 8.1 km/L in the city and 10.2 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 19 | 8.1 | 12.4 |
| Highway | 24 | 10.2 | 9.8 |
| Combined | 21 | 8.9 | 11.2 |
How it ranks among 2027 Midsize & Large SUVs
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
GLS-Class Hybrid MPG across model years
Full history →1 EPA-rated configuration
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| AWD · 3.0L 6-cyl turbo · 9-speed automatic GLS450 4matic |
Hybrid | 19 MPG | 24 MPG | 21 MPG | — | $2,821 |
Specs (most efficient configuration)
- Fuel
- Premium gasoline
- Engine / motor
- 3.0L 6-cyl turbo
- Transmission
- 9-speed automatic
- Drivetrain
- AWD
- Tailpipe CO₂
- 424 g/mi
- EPA fuel economy score
- 4/10
- EPA greenhouse gas score
- 4/10
2027 Mercedes-Benz GLS-Class Hybrid vs. rivals
Compare the 2027 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 2027 Mercedes-Benz GLS-Class Hybrid?
Up to 21 MPG combined (19 city / 24 highway).
What fuel does the 2027 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 2027 Mercedes-Benz GLS-Class Hybrid?
The 2027 Mercedes-Benz GLS-Class Hybrid's fuel average is 8.9 km/L (11.2 L/100 km), or 21 MPG combined: 8.1 km/L in the city and 10.2 km/L on the highway.
How much does it cost to fuel the 2027 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.