# Mercedes-Benz SL-Class specs and mpg by year - **Latest year:** 2027 - **MPG (combined):** 16-23 - **Drive:** AWD, RWD - **Years covered:** 2015-2027 ## Quick answer The 2027 Mercedes-Benz SL-Class is a minicompact car rated at 16-23 mpg combined. Engines: 4.0L V8 turbo; 2.0L 4-cyl turbo hybrid. ## Every 2027 Mercedes-Benz SL-Class version | Version | Engine | Drive | Transmission | City/Hwy | Combined | Fuel cost / year | CO2 | | --- | --- | --- | --- | --- | --- | --- | --- | | AMG SL43 | 2.0L 4-cyl turbo hybrid | RWD | Automatic | 20/28 | 23 mpg | $3,550 | 388 g/mi | | SL680 Maybach | 4.0L V8 turbo | AWD | Automatic | 13/20 | 16 mpg | $5,150 | 558 g/mi | | AMG SL63 4matic Plus | 4.0L V8 turbo | AWD | Automatic | 14/21 | 16 mpg | $5,150 | 552 g/mi | | AMG SL55 4matic Plus | 4.0L V8 turbo | AWD | Automatic | 14/21 | 16 mpg | $5,150 | 552 g/mi | Each row is a version the EPA tested. Fuel cost assumes 15,000 miles a year (55% city) at national average prices; CO2 is tailpipe emissions. ## Mercedes-Benz SL-Class specs by year | Year | Engines | Transmission | Drive | MPG (combined) | | --- | --- | --- | --- | --- | | 2027 | 4.0L V8 turbo; 2.0L 4-cyl turbo hybrid | Automatic | AWD, RWD | 16-23 | | 2026 | 2.0L 4-cyl turbo hybrid; 4.0L V8 turbo | Automatic | AWD, RWD | 16-22 | | 2025 | 2.0L 4-cyl turbo hybrid; 4.0L V8 turbo; 4.0L V8 turbo plug-in hybrid | Automatic | AWD, RWD | 16-22 | | 2024 | 2.0L 4-cyl turbo hybrid; 4.0L V8 turbo | Automatic | AWD, RWD | 16-22 | | 2023 | 4.0L V8 turbo; 2.0L 4-cyl turbo hybrid | Automatic | AWD, RWD | 16-23 | | 2022 | 4.0L V8 turbo | Automatic | AWD | 16 | | 2020 | 4.7L V8 turbo; 3.0L V6 turbo | Automatic | RWD | 20-22 | | 2019 | 3.0L V6 turbo; 4.7L V8 turbo; 5.5L V8 turbo | Automatic | RWD | 18-23 | | 2018 | 4.7L V8 turbo; 5.5L V8 turbo; 6.0L V12 turbo; 3.0L V6 turbo | Automatic | RWD | 16-23 | | 2017 | 4.7L V8 turbo; 3.0L V6 turbo; 5.5L V8 turbo; 6.0L V12 turbo | Automatic | RWD | 16-23 | | 2016 | 3.0L V6 turbo; 5.5L V8 turbo; 4.7L V8 turbo; 6.0L V12 turbo | Automatic | RWD | 17-23 | | 2015 | 4.7L V8 turbo; 6.0L V12 turbo; 3.0L V6 turbo; 5.5L V8 turbo | Automatic | RWD | 17-23 | EPA combined ratings. MPGe is the EPA efficiency measure for electric cars. Ranges cover every engine and drivetrain EPA tested for that year. ## How has the SL-Class changed over the years? - **2027:** combined mpg went from 16-22 to 16-23. - **2026:** dropped 4.0L V8 turbo plug-in hybrid. - **2025:** added 4.0L V8 turbo plug-in hybrid. - **2024:** combined mpg went from 16-23 to 16-22. - **2023:** added 2.0L 4-cyl turbo hybrid; RWD became available. - **2022:** added 4.0L V8 turbo; dropped 4.7L V8 turbo and 3.0L V6 turbo; AWD became available; RWD was dropped. - **2020:** dropped 5.5L V8 turbo. - **2019:** dropped 6.0L V12 turbo. - **2017:** combined mpg went from 17-23 to 16-23. ## What does it cost to run a SL-Class? The EPA puts the 2027 Mercedes-Benz SL-Class's fuel cost at **$3,550-$5,150 a year**, against about $3,204 for other current minicompact car: roughly 36% more. Over five years at 15,000 miles a year that is about $21,750 in fuel. ## SL-Class vs rivals | Model | Powertrains | Fuel economy | Fuel cost / year | | --- | --- | --- | --- | | [Mini Cooper](/vehicles/mini-cooper) | Gas | 30-32 mpg | $2,550-$2,750 | | [Mini John Cooper Works](/vehicles/mini-john-cooper-works) | Gas | 30 mpg | $2,750 | | [Subaru BRZ](/vehicles/subaru-brz) | Gas | 22-25 mpg | $3,300-$3,750 | | [Toyota GR 86](/vehicles/toyota-gr-86) | Gas | 22-24 mpg | $3,400-$3,750 | | [Porsche 911](/vehicles/porsche-911) | Gas | 15-21 mpg | $3,900-$5,500 | | [Lexus LC](/vehicles/lexus-lc) | Gas | 18 mpg | $4,550 | Other current minicompact car from other makes, most efficient first. ## Frequently asked questions ### What mpg does the 2027 Mercedes-Benz SL-Class get? The 2027 Mercedes-Benz SL-Class is EPA-rated at 16-23 mpg combined, depending on engine and drivetrain. Real-world mileage varies with speed, climate and load. ### What engine does the 2027 Mercedes-Benz SL-Class have? The 2027 Mercedes-Benz SL-Class comes with: 4.0L V8 turbo; 2.0L 4-cyl turbo hybrid. It uses automatic transmission and is offered with AWD and RWD. ### Is there a hybrid Mercedes-Benz SL-Class? Yes. The Mercedes-Benz SL-Class has been offered as a hybrid and a plug-in hybrid in some model years; the table above shows which. ### Which Mercedes-Benz SL-Class year gets the best gas mileage? In the EPA data, the 2027 Mercedes-Benz SL-Class has the highest combined rating, up to 23 mpg. Ratings for the same model can change between years when engines or test procedures change. ### How much does it cost to fuel a 2027 Mercedes-Benz SL-Class for a year? About $3,550-$5,150 a year, using the EPA's assumptions of 15,000 miles (55% city, 45% highway) at national average fuel prices. Your cost depends on your local prices, mileage and driving style. ### What is the city and highway mpg of the 2027 Mercedes-Benz SL-Class? The most efficient 2027 version, the AMG SL43, is rated 20 mpg city and 28 mpg highway (23 combined). Other engines and drivetrains are rated lower; the versions table above lists each one. ### How much CO2 does the 2027 Mercedes-Benz SL-Class emit? EPA rates its tailpipe CO2 at 388-558 grams per mile depending on version. Lower is better; the cleanest gas cars sit under 250 g/mi and electric cars have none at the tailpipe. ### Does the 2027 Mercedes-Benz SL-Class come with all-wheel drive? Yes. The 2027 Mercedes-Benz SL-Class is offered with AWD and RWD. All- or four-wheel drive usually costs 1-3 mpg compared with the two-wheel-drive version of the same engine, as the versions table shows. ### Is the Mercedes-Benz SL-Class cheap to run compared with other minicompact cars? No, dearer than average: its EPA annual fuel cost of $3,550-$5,150 compares with about $3,204 for other current minicompact car models. Fuel is only part of running costs; insurance, tires and repairs also differ. ## Sources - [fueleconomy.gov (US DOE and EPA)](https://www.fueleconomy.gov/) ## All Mercedes-Benz cars - [Mercedes-Benz AMG GT](https://diagxcar.com/vehicles/mercedes-benz-amg-gt) - [Mercedes-Benz CLE-Class](https://diagxcar.com/vehicles/mercedes-benz-cle-class) - [Mercedes-Benz C-Class](https://diagxcar.com/vehicles/mercedes-benz-c-class) - [Mercedes-Benz CLA-Class](https://diagxcar.com/vehicles/mercedes-benz-cla-class) - [Mercedes-Benz GLA-Class](https://diagxcar.com/vehicles/mercedes-benz-gla-class) - [Mercedes-Benz E-Class](https://diagxcar.com/vehicles/mercedes-benz-e-class) - [Mercedes-Benz EQE](https://diagxcar.com/vehicles/mercedes-benz-eqe) - [Mercedes-Benz EQS](https://diagxcar.com/vehicles/mercedes-benz-eqs) - [Mercedes-Benz S-Class](https://diagxcar.com/vehicles/mercedes-benz-s-class) ## More Mercedes-Benz models - [Mercedes-Benz G-Class](https://diagxcar.com/vehicles/mercedes-benz-g-class) - [Mercedes-Benz GLB-Class](https://diagxcar.com/vehicles/mercedes-benz-glb-class) - [Mercedes-Benz GLC-Class](https://diagxcar.com/vehicles/mercedes-benz-glc-class) - [Mercedes-Benz GLE-Class](https://diagxcar.com/vehicles/mercedes-benz-gle-class) - [Mercedes-Benz GLS-Class](https://diagxcar.com/vehicles/mercedes-benz-gls-class) - [Mercedes-Benz A-Class](https://diagxcar.com/vehicles/mercedes-benz-a-class): discontinued ## Other minicompact cars - [Mini Cooper](https://diagxcar.com/vehicles/mini-cooper) - [Mini John Cooper Works](https://diagxcar.com/vehicles/mini-john-cooper-works) - [Porsche 911](https://diagxcar.com/vehicles/porsche-911) - [Subaru BRZ](https://diagxcar.com/vehicles/subaru-brz) - [Toyota GR 86](https://diagxcar.com/vehicles/toyota-gr-86) - [Fiat 500e](https://diagxcar.com/vehicles/fiat-500e) - [Lexus LC](https://diagxcar.com/vehicles/lexus-lc) ## Car care - [How long do tires last?](https://diagxcar.com/how-long/tires) - [How often to change oil](https://diagxcar.com/how-often/change-oil) - [Tire size calculator](https://diagxcar.com/tools/tire-size-calculator) --- Source page: https://diagxcar.com/vehicles/mercedes-benz-sl-class Updated: 2026-11-03 General information, not a substitute for a qualified mechanic.