2023 Audi S4 — Full Specifications
As an Amazon Associate and CJ Affiliate and AWIN publisher we earn from qualifying purchases. Links below are affiliate links.
Running gear matters most — before anything else, UK: check tyre prices at TirendoUS: check wheel & tyre prices at WheelHero for this car's fitment.
The 2023 Audi S4 is a saloon/sedan powered by a 3L 6-cyl turbo premium gasoline engine. It returns around 29 mpg (UK) / 24 mpg (US EPA) combined. Owners often keep a Audi S4 workshop manual to hand for servicing and repairs.
Compared with the 2022 Audi S4: Fuel economy is essentially unchanged at around 29 mpg (UK) combined. The engine line-up listed by EPA is unchanged.
Full Specifications
| Engine | 3L 6-cyl turbo |
|---|---|
| Transmission | Automatic (S8) |
| Fuel Type | Premium Gasoline |
| Powertrain | Conventional |
| Drive | 4-Wheel Drive |
| Body Style | Saloon/Sedan |
| Passenger Volume (EPA) | 92 cu ft (2,605 L) |
| Luggage Volume (EPA) | 12 cu ft (340 L) |
| Fuel Economy (UK) | 29 combined / 25 urban / 36 extra-urban mpg |
| Fuel Economy (US EPA) | 24 combined / 21 city / 30 highway mpg |
| CO₂ Emissions | 226 g/km |
| EPA Greenhouse Gas Score | 5 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $3,400 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 1 configuration for the 2023 Audi S4, all with the 3L 6-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 |
|---|---|---|---|---|---|---|
| 3L 6-cyl turbo | Automatic (S8) | 4-Wheel Drive | 29 | 24 (21/30) | 226 | $3,400 |
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 92 cubic feet (about 2,605 litres) and luggage volume at 12 cubic feet (about 340 litres). These are US EPA interior-volume figures; they are measured differently from the boot capacity numbers UK manufacturers quote.
Owner Essentials for the 2023 Audi S4
Running Costs: 2023 Audi S4
Covering around 8,000 miles a year in a 2023 Audi S4 at 29 mpg combined, expect roughly 1,254 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $3,400 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.
2023 Audi S4 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 2023 Audi S4's 29 mpg is 2 mpg above that make average. Its 226 g/km CO₂ figure is 25 g/km lower than the 251 g/km Audi average.
Of the 15 Audi S4 model years we cover, the 2023 is the most economical on its best configuration (29 mpg UK combined). See every Audi S4 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 2023 Audi S4
Frequently Asked Questions
What engine does the 2023 Audi S4 have?
It's fitted with a 3L 6-cyl turbo premium gasoline engine, paired with a automatic (s8) transmission.
What is the fuel economy of the 2023 Audi S4?
The most efficient configuration returns around 29 mpg (UK) combined, or 24 mpg on the US EPA cycle.
How much does the 2023 Audi S4 cost to fuel per year?
The US EPA estimates about $3,400 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 2023 Audi S4 have?
EPA measures interior passenger volume at 92 cubic feet (about 2,605 litres) and luggage volume at 12 cubic feet (about 340 litres). These are US EPA interior-volume figures, which are measured differently from the UK boot-capacity numbers manufacturers quote.