# Audi S6 specs and mpg by year - **Latest year:** 2025 - **MPG (combined):** 22 - **Drive:** AWD - **Years covered:** 2015-2025 ## Quick answer The 2025 Audi S6 is a midsize car rated at 22 mpg combined. Engines: 2.9L V6 hybrid. ## Every 2025 Audi S6 version | Version | Engine | Drive | Transmission | City/Hwy | Combined | Fuel cost / year | CO2 | | --- | --- | --- | --- | --- | --- | --- | --- | | S6 | 2.9L V6 hybrid | AWD | Automatic | 19/27 | 22 mpg | $3,750 | 408 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. ## Audi S6 specs by year | Year | Engines | Transmission | Drive | MPG (combined) | | --- | --- | --- | --- | --- | | 2025 | 2.9L V6 hybrid | Automatic | AWD | 22 | | 2024 | 2.9L V6 hybrid | Automatic | AWD | 22 | | 2023 | 2.9L V6 turbo hybrid | Automatic | AWD | 22 | | 2022 | 2.9L V6 turbo hybrid | Automatic | 4WD | 22 | | 2021 | 2.9L V6 turbo hybrid | Automatic | AWD | 22 | | 2020 | 2.9L V6 turbo hybrid | Automatic | AWD | 22 | | 2018 | 4.0L V8 turbo | Automatic | AWD | 18 | | 2017 | 4.0L V8 turbo | Automatic | AWD | 21 | | 2016 | 4.0L V8 turbo | Automatic | AWD | 21 | | 2015 | 4.0L V8 turbo | Automatic | AWD | 20 | 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 S6 changed over the years? - **2024:** added 2.9L V6 hybrid; dropped 2.9L V6 turbo hybrid. - **2023:** AWD became available; 4WD was dropped. - **2022:** 4WD became available; AWD was dropped. - **2020:** added 2.9L V6 turbo hybrid; dropped 4.0L V8 turbo. - **2018:** combined mpg went from 21 to 18. - **2016:** combined mpg went from 20 to 21. ## Frequently asked questions ### What mpg does the 2025 Audi S6 get? The 2025 Audi S6 is EPA-rated at 22 mpg combined, depending on engine and drivetrain. Real-world mileage varies with speed, climate and load. ### What engine does the 2025 Audi S6 have? The 2025 Audi S6 comes with: 2.9L V6 hybrid. It uses automatic transmission and is offered with AWD. ### Is there a hybrid Audi S6? Yes. The Audi S6 has been offered as a hybrid in some model years; the table above shows which. ### Which Audi S6 year gets the best gas mileage? In the EPA data, the 2025 Audi S6 has the highest combined rating, up to 22 mpg. Ratings for the same model can change between years when engines or test procedures change. ### How much does it cost to fuel a 2025 Audi S6 for a year? About $3,750 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 2025 Audi S6? The most efficient 2025 version, the S6, is rated 19 mpg city and 27 mpg highway (22 combined). Other engines and drivetrains are rated lower; the versions table above lists each one. ### How much CO2 does the 2025 Audi S6 emit? EPA rates its tailpipe CO2 at 408 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 2025 Audi S6 come with all-wheel drive? Yes. The 2025 Audi S6 is offered with AWD. 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. ## Sources - [fueleconomy.gov (US DOE and EPA)](https://www.fueleconomy.gov/) ## All Audi cars - [Audi A3](https://diagxcar.com/vehicles/audi-a3) - [Audi RS](https://diagxcar.com/vehicles/audi-rs) - [Audi S3](https://diagxcar.com/vehicles/audi-s3) - [Audi RS e-tron](https://diagxcar.com/vehicles/audi-rs-e-tron) - [Audi S e-tron](https://diagxcar.com/vehicles/audi-s-e-tron) - [Audi A5](https://diagxcar.com/vehicles/audi-a5) - [Audi S5](https://diagxcar.com/vehicles/audi-s5) - [Audi A6](https://diagxcar.com/vehicles/audi-a6) - [Audi A8](https://diagxcar.com/vehicles/audi-a8) - [Audi S8](https://diagxcar.com/vehicles/audi-s8) ## More Audi models - [Audi Q3](https://diagxcar.com/vehicles/audi-q3) - [Audi Q4 e-tron](https://diagxcar.com/vehicles/audi-q4-e-tron) - [Audi Q5](https://diagxcar.com/vehicles/audi-q5) - [Audi Q7](https://diagxcar.com/vehicles/audi-q7) - [Audi Q8](https://diagxcar.com/vehicles/audi-q8) - [Audi RS Q8](https://diagxcar.com/vehicles/audi-rs-q8) ## Other midsize cars - [Audi S7](https://diagxcar.com/vehicles/audi-s7) - [BMW 5 Series](https://diagxcar.com/vehicles/bmw-5-series) - [Cadillac CT5](https://diagxcar.com/vehicles/cadillac-ct5) - [Chevrolet Malibu](https://diagxcar.com/vehicles/chevrolet-malibu) - [Dodge Challenger](https://diagxcar.com/vehicles/dodge-challenger) - [Honda Accord](https://diagxcar.com/vehicles/honda-accord) - [Honda Civic](https://diagxcar.com/vehicles/honda-civic) - [Honda Clarity](https://diagxcar.com/vehicles/honda-clarity) ## 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/audi-s6 Updated: 2026-11-03 General information, not a substitute for a qualified mechanic.