Mercedes-Benz · Minicompact cars · Hybrid
Mercedes-Benz SL-Class Hybrid: MPG and annual fuel cost, 2026
Rated at 22 MPG combined for 2026, the Mercedes-Benz SL-Class Hybrid is 5th of 12 minicompact cars, in the upper half, ahead of 64% of the others.
- 22MPG combined5th of 12 in class
- $3,750a year in fuel5th of 12 in class
- 400g/mile CO2
Where it stands
The minicompact cars rated for 2026 run from 16 to 116 MPG, with a median of 20 MPG.
Among all hybrid models of the year, regardless of size, it is tied for 67th of 88 hybrid models, in the bottom quarter.
Within the 22 Mercedes-Benz models rated for 2026 it is tied for 16th on combined rating; the median of the make's line-up is 25.5 MPG.
In its class, just ahead of it is the Subaru BRZ at 25 MPG and just behind it is the Porsche 911 at 21 MPG.
Fuel cost and CO2
At 15,000 miles a year with 55% of them in the city, with premium gasoline at $5.48 per gallon, the annual fuel bill of the most efficient version is about $3,750. That is $375 less than the minicompact cars median of $4,125.
It emits 400 g of CO2 per mile from the tailpipe; the minicompact cars median is 414.5, a difference of 14 g/mile.
Rated versions
Its city rating is 19 and its highway rating 27: the highway figure is 8 higher. The data lists one version for 2026: AMG SL43: 2.0 L, 4 cyl hybrid, Automatic 9-spd, RWD.
| Version | Combined MPG | City MPG | Highway MPG | Annual fuel cost | CO2 g/mile |
|---|---|---|---|---|---|
| AMG SL43: 2.0 L, 4 cyl hybrid, Automatic 9-spd, RWD | 22 | 19 | 27 | $3,750 | 400 |
Year by year
The Mercedes-Benz SL-Class Hybrid is in the data for 4 of the 8 model years from 2019 to 2026. Between 2023 and 2026 the best combined rating fell by 1 MPG, from 23 to 22. Fuel cost for the best version is $3,750 in the latest data against $3,550 in 2023, although the file applies today's fuel prices to every model year, so that change comes from the rating, not from prices.
| Model year | Versions | Best MPG | Lowest MPG | Fuel cost | CO2 g/mi | Class median |
|---|---|---|---|---|---|---|
| 2026 | 1 | 22 | 22 | $3,750 | 400 | 20 |
| 2025 | 1 | 22 | 22 | $3,750 | 400 | 21 |
| 2024 | 1 | 22 | 22 | $3,750 | 398 | 21.5 |
| 2023 | 1 | 23 | 23 | $3,550 | 385 | 20 |
Similar models
| Model | Powertrain | Combined MPG | Annual fuel cost | Model year |
|---|---|---|---|---|
| Porsche 911 | Gasoline | 21 | $3,900 | 2026 |
| Bentley Continental Plug-in hybrid | Plug-in hybrid | 19 | $4,350 | 2026 |
| Ferrari Roma | Gasoline | 19 | $4,350 | 2026 |
| Subaru BRZ | Gasoline | 25 | $3,300 | 2026 |
| Lexus LC | Gasoline | 18 | $4,550 | 2026 |
Compare and rank
Rankings: Minicompact cars, Hybrid, Mercedes-Benz.
Data: US EPA and DOE, as prepared in methods and data.