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2020 Audi S8
Shown: 2020 Audi S8. Photo: Ssu, CC BY-SA 4.0, via Wikimedia Commons
  • Newest year: 2027
  • Hybrid
  • Large cars
  • Partial model year
  • Same as 2026

2020-2027 Audi S8 MPG & Fuel Cost

8 model years · 16–18 MPG combined

18 MPG
Combined
15 MPG
City
24 MPG
Highway
Annual fuel cost · S8 4.0L 8-cyl turbo AWD
$4,540

15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)

Cheaper to fuel than 1 of 10 large car configurations, MY2027. Ranked against all rated configurations, not sales-weighted.

2020-2027 Audi S8 at a glance

The 2020-2027 Audi S8 covers 8 model years in the EPA database (8 configurations in all), rated 16–18 MPG combined. The newest model year, 2027, costs about $4,540 a year to fuel for its most efficient version, the S8 4.0L 8-cyl turbo AWD (18 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2022, 2023, 2024 and 2026; 2021, 2025 and 2027 repeat the values of the year before. The best combined rating in the generation, 18 MPG, was reached in 2023, 2024, 2025, 2026 and 2027.

Model year 2027 is still being filled in by EPA (1 configuration listed so far), so rows may be added.

2020-2027 Audi S8 by model year

2020-2027 Audi S8: EPA combined rating and yearly fuel cost for each model year
Model yearPowertrainsCombined$/yrEPA ratings
2027 (partial) Hybrid 18 MPG $4,540 Same EPA ratings as 2026
2026 Hybrid 18 MPG $4,540 Ratings changed
2025 Hybrid 18 MPG $4,540 Same EPA ratings as 2024
2024 Hybrid 18 MPG $4,540 Ratings changed
2023 Hybrid 18 MPG $4,570 Ratings changed
2022 Hybrid 17 MPG $4,730 Ratings changed
2021 Hybrid 16 MPG $4,950 Same EPA ratings as 2020
2020 Hybrid 16 MPG $4,950 First year

What the 2027 S8 4.0L 8-cyl turbo AWD costs to drive

Per month

$378

$4,540 a year ÷ 12

Per 25 miles

$7.57

Per 100 miles

$30.27

Five years

$22,700

5 × the yearly cost, prices held at today's level

vs the large car median

$3,280more a year

Class median $1,260 a year, MY2027

Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).

2027 Audi S8 MPG

Model year 2027 is still being filled in by EPA (1 configuration listed so far), so rows may be added.

EPA lists the same ratings for the 2027 Audi S8 as for the 2026 model, so the configurations and costs are the ones in the 2026 section above.See 2026

Hybrid · 4.0L
Combined
18 MPG
Per year
$4,540

Hybrid configurations (1)

2027 Audi S8 hybrid configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
S8 (Most efficient) 4.0L 8-cyl turbo AWD 15 24 18 $4,540

1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

2026 Audi S8 MPG

18 MPG · $4,540/yr

Versus 2025: The most efficient configuration stays at 18 MPG. Its annual cost stays at $4,540.

Hybrid · 4.0L
Combined
18 MPG
Per year
$4,540

Hybrid configurations (1)

2026 Audi S8 hybrid configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
S8 (Most efficient) 4.0L 8-cyl turbo AWD 15 24 18 $4,540

1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

2025 Audi S8 MPG

Same EPA ratings as 2024

EPA lists the same ratings for the 2025 Audi S8 as for the 2024 model, so the configurations and costs are the ones in the 2024 section above.See 2024

2024 Audi S8 MPG

18 MPG · $4,540/yr

Versus 2023: The most efficient configuration stays at 18 MPG. Its annual cost goes from $4,570 to $4,540, $30 less.

Hybrid · 4.0L
Combined
18 MPG
Per year
$4,540

Hybrid configurations (1)

2024 Audi S8 hybrid configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
S8 (Most efficient) 4.0L 8-cyl turbo AWD 15 24 18 $4,540

1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

2023 Audi S8 MPG

18 MPG · $4,570/yr

Versus 2022: The most efficient configuration moves from 17 to 18 MPG, up 1. Its annual cost goes from $4,730 to $4,570, $160 less.

Hybrid · 4.0L
Combined
18 MPG
Per year
$4,570

Hybrid configurations (1)

2023 Audi S8 hybrid configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
S8 (Most efficient) 4.0L 8-cyl turbo AWD 15 23 18 $4,570

1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

2022 Audi S8 MPG

17 MPG · $4,730/yr

Versus 2021: The most efficient configuration moves from 16 to 17 MPG, up 1. Its annual cost goes from $4,950 to $4,730, $220 less.

Hybrid · 4.0L
Combined
17 MPG
Per year
$4,730

Hybrid configurations (1)

2022 Audi S8 hybrid configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
S8 (Most efficient) 4.0L 8-cyl turbo AWD 14 23 17 $4,730

1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

2021 Audi S8 MPG

Same EPA ratings as 2020

EPA lists the same ratings for the 2021 Audi S8 as for the 2020 model, so the configurations and costs are the ones in the 2020 section above.See 2020

2020 Audi S8 MPG

16 MPG · $4,950/yr
Hybrid · 4.0L
Combined
16 MPG
Per year
$4,950

Hybrid configurations (1)

2020 Audi S8 hybrid configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
S8 (Most efficient) 4.0L 8-cyl turbo AWD 13 22 16 $4,950

1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

Fuel cost by state

Yearly cost of the S8 4.0L 8-cyl turbo AWD: $5,420 in California and $3,940 in Texas, a $1,480 difference.

Gasoline prices: California: California state average; Washington: Washington state average; New York: New York state average; Florida: Florida state average; Texas: Texas state average (Sep 2026).
Fuel cost in every state

Similar cars

Closest combined MPG among MY2027 large car models.

EPA ratings: fueleconomy.gov file of Sep 29, 2026 · Prices: EIA regular gasoline, U.S. average, Sep 2026 ($4.36/gal) · 15,000 mi/yr, 55% city / 45% highway · How we calculate

Generations

Frequently asked questions

What gas mileage does the 2020-2027 Audi S8 get?

EPA rates the 2020-2027 Audi S8 at 16–18 MPG combined across 8 configurations and 8 model years. The most efficient version, the 2027 S8 4.0L 8-cyl turbo AWD, is rated 18 MPG (15 city, 24 highway).

Which years had the best MPG in the 2020-2027 Audi S8?

The S8 4.0L 8-cyl turbo AWD reached the generation's best combined rating, 18 MPG, in 2023, 2024, 2025, 2026 and 2027. The lowest top rating, 16 MPG, was in 2020 and 2021.

Did EPA ratings change during the 2020-2027 Audi S8?

Yes. Ratings changed in 2022, 2023, 2024 and 2026. In 2021, 2025 and 2027 the values repeat the year before.

How does the 2020-2027 Audi S8 compare with the previous generation?

The previous generation (2013-2018 Audi S8) is rated 18–20 MPG combined and costs $4,080–$4,570 a year to fuel; the 2020-2027 model is rated 16–18 MPG and costs $4,540–$4,950 a year.

How much does it cost to fuel a 2027 Audi S8 per year?

Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the S8 4.0L 8-cyl turbo AWD costs about $4,540 a year. Across all 1 configuration the cost runs $4,540 a year.

How much does it cost to drive a 2027 Audi S8 100 miles?

About $30.27 per 100 miles for the S8 4.0L 8-cyl turbo AWD at premium gasoline $5.36/gal (U.S. average, Sep 2026). That is the annual cost over 15,000 miles divided by 150.

Is the 2027 Audi S8 more efficient in the city or on the highway?

The S8 4.0L 8-cyl turbo AWD is rated 15 city and 24 highway MPG, so it is more efficient on the highway, by 9 MPG.

How does the 2027 Audi S8 compare with other large car configurations?

The S8 4.0L 8-cyl turbo AWD costs about $4,540 a year to fuel, $3,280 more than the class median of $1,260, and less than 1 of 10 large car configurations. The comparison covers all 50 rated large car configurations for MY2027, not weighted by sales.

Is the 2027 Audi S8 different from the 2026 model?

No. EPA lists the same ratings for 2026 and 2027: 1 configuration rated 18 MPG combined. See the 2026 Audi S8 for that year.