MPG by Model

MakesAudiS8

Audi S8 MPG

Its best-rated version reaches 20 MPG combined in 2015. Its weakest year peaked at 15 MPG (2001–2002 and 2007–2009).

Audi S8: best and lowest EPA combined MPG of its versions, model years 2001–202610152025MPG2020200120152020202620 MPG peaklowest peak 15Audi S8: best and lowest EPA combined MPG by model year10152025MPG200120082014201620182020202220242026peak 20
lowest to best versionbest versionbest version is a hybridmedian of its classengine list turned over
833.3 gal

a year at 15,000 miles for the best 2026 version. Put it next to its 2001 predecessor, at your own mileage.

Compare in gallons

The Audi S8 has EPA ratings for 19 model years, 2001–2026, most often among midsize cars. In 2003 its most efficient version still placed second from the bottom of 41 midsize cars, where the Bentley Arnage rated lowest.

Averaged over 1999–2003, the best version of the S8 placed third from the bottom of 45 among midsize cars rated at least three years in that span, and it was in the bottom five in two other five-year spans. Of the 991 car nameplates on this site, few have had a hybrid version (73 of them); this one has.

Among 16 large cars, 2026

The S8 placed 14th. The class leader was the Hyundai Sonata at 51 MPG. The next higher rating, 20 MPG, belongs to the Dodge Charger.

Best EPA combined MPG of each of the 16 large cars rated for 20261520253035404550S8 18median 23SonataBest EPA combined MPG of each of the 16 large cars rated for 20261520253035404550S8 18median 23

The S8, five years at a time

Average rating of its best version per span, placed in the class it sat in most often.

1999–0343rd of 45midsize cars
2014–1847th of 53midsize cars
2019–2318th of 20large cars
2024–2612th of 14large cars

Where the engine list turned over

  • 2020

    New: 4.0-liter 8-cylinder hybrid. Best rating 18 → 16 MPG.

Powertrains under the name

  • Gasoline

    Rated in 2001–2003, 2007–2009 and 2013–2018.

  • Hybrid

    Rated in 2020–2026.

All 19 model years, best and lowest version
Model yearsBest versionCombinedCity / hwyLowest versionVersions
2024–2026S8 hybrid1815 / 24181
2023S8 hybrid1815 / 23181
2022S8 hybrid1714 / 23171
2020–2021S8 hybrid1613 / 22161
2018S81814 / 24181
2017S81815 / 24181
2016S81815 / 25181
2015S82016 / 27201
2013–2014S81815 / 26181
2007–2009S81513 / 19151
2003S81614 / 20161
2001–2002S8 quattro1513 / 20151

Version names in the EPA list: S8, S8 quattro.

Same class, 2026

Hyundai Sonata51 MPGDodge Charger20 MPGRolls-Royce Ghost14 MPGRolls-Royce Phantom14 MPG

Read next: How much more a hybrid version is rated · How to read this page