Audi S6 Vehicle Class & EPA Size Category
The EPA classifies the 2025 Audi S6 as a Midsize Cars, a rating based on body style and interior volume.
Latest model year (2025):
The Audi S6 is classified by the EPA as a Midsize Cars.
Audi S6 Vehicle Class — All Years
| Year | Trim | Vehicle Class | Drive | Fuel Type | MPG Comb. |
|---|---|---|---|---|---|
| 2025 | Auto (S8), 6 cyl, 2.9 L | Midsize Cars | All-Wheel Drive | Premium Gasoline | 22 |
| 2024 | Auto (S8), 6 cyl, 2.9 L | Midsize Cars | All-Wheel Drive | Premium Gasoline | 22 |
| 2023 | Auto (S8), 6 cyl, 2.9 L | Midsize Cars | All-Wheel Drive | Premium Gasoline | 22 |
| 2022 | Auto (S8), 6 cyl, 2.9 L | Midsize Cars | 4-Wheel Drive | Premium Gasoline | 22 |
| 2021 | Auto (S8), 6 cyl, 2.9 L | Midsize Cars | All-Wheel Drive | Premium Gasoline | 22 |
| 2020 | Auto (S8), 6 cyl, 2.9 L | Midsize Cars | All-Wheel Drive | Premium Gasoline | 22 |
| 2018 | Auto (AM-S7), 8 cyl, 4.0 L | Midsize Cars | All-Wheel Drive | Premium Gasoline | 18 |
| 2017 | Auto (AM-S7), 8 cyl, 4.0 L | Midsize Cars | All-Wheel Drive | Premium Gasoline | 21 |
| 2016 | Auto (AM-S7), 8 cyl, 4.0 L | Midsize Cars | All-Wheel Drive | Premium Gasoline | 21 |
| 2015 | Auto (AM-S7), 8 cyl, 4.0 L | Midsize Cars | All-Wheel Drive | Premium Gasoline | 20 |
Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.
Audi S6 Vehicle Class FAQ
What class of vehicle is the Audi S6?
The EPA classifies the Audi S6 as a Midsize Cars. This classification is based on interior volume and body style and affects how its fuel economy is compared with other vehicles.
Is the Audi S6 considered a small or large vehicle?
Based on its EPA class (Midsize Cars), the Audi S6 is grouped with vehicles of similar size and interior volume. The class can change between model years when the body is redesigned.