Audi S8 Engine Specifications
The 2027 Audi S8 is offered with 4.0L engines in 8-cylinder form, per EPA fuel-economy records.
Latest model year (2027):
The Audi S8 is available with 8 4.0L and Automatic (S8) (All-Wheel Drive).
Audi S8 Engine Specs — All Years
| Year | Trim | Cylinders | Displ. | Transmission | Drive | Fuel Type | Vehicle Class |
|---|---|---|---|---|---|---|---|
| 2027 | Auto (S8), 8 cyl, 4.0 L | 8 | 4.0L | Automatic (S8) | All-Wheel Drive | Premium Gasoline | Large Cars |
| 2026 | Auto (S8), 8 cyl, 4.0 L | 8 | 4.0L | Automatic (S8) | All-Wheel Drive | Premium Gasoline | Large Cars |
| 2025 | Auto (S8), 8 cyl, 4.0 L | 8 | 4.0L | Automatic (S8) | All-Wheel Drive | Premium Gasoline | Large Cars |
| 2024 | Auto (S8), 8 cyl, 4.0 L | 8 | 4.0L | Automatic (S8) | All-Wheel Drive | Premium Gasoline | Large Cars |
| 2023 | Auto (S8), 8 cyl, 4.0 L | 8 | 4.0L | Automatic (S8) | All-Wheel Drive | Premium Gasoline | Large Cars |
| 2022 | Auto (S8), 8 cyl, 4.0 L | 8 | 4.0L | Automatic (S8) | All-Wheel Drive | Premium Gasoline | Large Cars |
| 2021 | Auto (S8), 8 cyl, 4.0 L | 8 | 4.0L | Automatic (S8) | All-Wheel Drive | Premium Gasoline | Large Cars |
| 2020 | Auto (S8), 8 cyl, 4.0 L | 8 | 4.0L | Automatic (S8) | All-Wheel Drive | Premium Gasoline | Large Cars |
| 2018 | Auto (S8), 8 cyl, 4.0 L | 8 | 4.0L | Automatic (S8) | All-Wheel Drive | Premium Gasoline | Midsize Cars |
| 2017 | Auto (S8), 8 cyl, 4.0 L | 8 | 4.0L | Automatic (S8) | All-Wheel Drive | Premium Gasoline | Midsize Cars |
| 2016 | Auto (S8), 8 cyl, 4.0 L | 8 | 4.0L | Automatic (S8) | All-Wheel Drive | Premium Gasoline | Midsize Cars |
| 2015 | Auto (S8), 8 cyl, 4.0 L | 8 | 4.0L | Automatic (S8) | All-Wheel Drive | Premium Gasoline | Midsize Cars |
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 S8 data analysis
How Audi S8 engine displacement varies
Across 12 configurations recorded for the 2015 through 2027 Audi S8, engine displacement runs from 4 litres to 4 litres. The strongest figure belongs to the 2027 Audi S8 (SIDI; Mild Hybrid) at 4 litres, and the weakest to the 2015 car (SIDI) at 4 litres — a spread of 0%. The narrow spread means any year of the Audi S8 in this table behaves much like the others, so you can shop on price, condition and mileage rather than chasing a particular model year.
What changed for 2027
Average engine displacement for the 2027 Audi S8 is 4 litres, against 4 litres for the 2026 car — it held flat. A carry-over year like this usually means no powertrain or structural change, so an older example is the cheaper way into the same specification.
How to read this Audi S8 data
This page lists every 2015 through 2027 Audi S8 record we hold for this measurement — 12 rows in total, one per configuration and model year rather than a single headline figure. Figures are published as the source agency records them: we do not round, average or interpolate missing years, and a year that is absent from the table is a year with no published measurement rather than a zero. Where a manufacturer offered several drivetrains or body styles in the same year, each appears on its own row, because those variants rarely share the same numbers.
Configurations behind these Audi S8 numbers
The 2015 through 2027 Audi S8 entries here cover the variants SIDI; Mild Hybrid and SIDI. 2027 is the busiest model year in the record with 1 separate measured configuration, which is why a single quoted engine displacement figure for that year is rarely the one that matches the car in front of you. Match the row to the exact drivetrain, body style and engine on the window sticker or VIN before relying on the number, and use the comparison links below to see how those same configurations line up against rival models.
Where these Audi S8 figures come from
Every value on this page is loaded from federal open data — EPA fuel economy submissions, NHTSA vehicle and crash-test records, and manufacturer specification filings — rather than dealer listings or copied editorial content. The Audi S8 record refreshes as the agencies publish, which typically means new model-year rows appear in the autumn and crash-test results follow through the model year as vehicles are tested. Because certification data is filed per configuration, treat any single headline number for this vehicle with caution: the figure that applies to a specific car depends on its engine, drivetrain, body style and model year, all of which are listed separately above. If a number here disagrees with a brochure, the brochure is usually quoting the best available configuration rather than the one being sold.
Frequently Asked Questions About S8 Engine Specs
What engine does the Audi S8 have?
The Audi S8 is available with 8 cylinder engines ranging up to 4.0L. Transmission and drivetrain options vary by trim. See the full table above.
Is the Audi S8 available with all-wheel drive?
Yes, the Audi S8 is available with all-wheel drive. Check the "Drive" column in the table above for specific trims.
Engine Specs for other Audi models
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