2020 Audi S8 — Full Specifications
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The 2020 Audi S8 is a saloon/sedan powered by a 4L 8-cyl turbo premium gasoline engine. It returns around 19 mpg (UK) / 16 mpg (US EPA) combined. Owners often keep a Audi S8 workshop manual to hand for servicing and repairs.
Full Specifications
| Engine | 4L 8-cyl turbo |
|---|---|
| Transmission | Automatic (S8) |
| Fuel Type | Premium Gasoline |
| Powertrain | Hybrid |
| Drive | All-Wheel Drive |
| Body Style | Saloon/Sedan |
| Passenger Volume (EPA) | 111 cu ft (3,143 L) |
| Luggage Volume (EPA) | 13 cu ft (368 L) |
| Fuel Economy (UK) | 19 combined / 16 urban / 26 extra-urban mpg |
| Fuel Economy (US EPA) | 16 combined / 13 city / 22 highway mpg |
| CO₂ Emissions | 339 g/km |
| EPA Greenhouse Gas Score | 2 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $5,150 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 1 configuration for the 2020 Audi S8, all with the 4L 8-cyl turbo engine. The headline figures at the top of this page describe the most fuel-efficient configuration.
| Engine | Transmission | Drive | MPG (UK) | MPG (US) | CO₂ g/km | Fuel cost / yr |
|---|---|---|---|---|---|---|
| 4L 8-cyl turbo (Hybrid) | Automatic (S8) | All-Wheel Drive | 19 | 16 (13/22) | 339 | $5,150 |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
EPA measures interior passenger volume at 111 cubic feet (about 3,143 litres) and luggage volume at 13 cubic feet (about 368 litres). These are US EPA interior-volume figures; they are measured differently from the boot capacity numbers UK manufacturers quote.
Owner Essentials for the 2020 Audi S8
Running Costs: 2020 Audi S8
Covering around 8,000 miles a year in a 2020 Audi S8 at 19 mpg combined, expect roughly 1,914 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $5,150 a year in fuel for the most efficient configuration (15,000 miles, national average prices). Work out exact fuel costs with the fuel cost calculator on 247Calculators.
Convert between MPG and L/100km with the unit converters on 247QuickTools. Not sure what tyre size fits? 247TyreCheck explains tyre sizing.
Only need this car occasionally? See our buy vs rent comparison.
2020 Audi S8 Safety Ratings (NHTSA)
No NHTSA crash-test rating is on record for this model year. The NHTSA rates only a subset of vehicles each year; you can browse every rated vehicle on our NHTSA Safety Ratings hub.
How It Compares
Audi models in our database average about 27 mpg (UK) combined on their most efficient configuration; the 2020 Audi S8's 19 mpg is 8 mpg below that make average. Its 339 g/km CO₂ figure is 88 g/km higher than the 251 g/km Audi average.
Of the 13 Audi S8 model years we cover, the 2020 ranks 12th for combined fuel economy on its best configuration (19 mpg UK combined, against a high of 24 mpg). See every Audi S8 year side by side.
Last updated: · Data: US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026; Wikidata & curated EU catalogue 18 July 2026; European generation and engine data from Wikipedia 7 October 2026
Vehicle data sourced from manufacturer specifications. Always verify with your vehicle handbook or a qualified mechanic. This is a reference tool, not professional advice.
Recommended Accessories for the 2020 Audi S8
Frequently Asked Questions
What engine does the 2020 Audi S8 have?
It's fitted with a 4L 8-cyl turbo premium gasoline engine, paired with a automatic (s8) transmission.
What is the fuel economy of the 2020 Audi S8?
The most efficient configuration returns around 19 mpg (UK) combined, or 16 mpg on the US EPA cycle.
How much does the 2020 Audi S8 cost to fuel per year?
The US EPA estimates about $5,150 a year in fuel for the most efficient configuration, based on 15,000 miles of mixed driving and national average fuel prices. Your own cost will depend on mileage and local prices.
How much interior and luggage space does the 2020 Audi S8 have?
EPA measures interior passenger volume at 111 cubic feet (about 3,143 litres) and luggage volume at 13 cubic feet (about 368 litres). These are US EPA interior-volume figures, which are measured differently from the UK boot-capacity numbers manufacturers quote.