2021 Audi A7 — 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 2021 Audi A7 is a hatchback offered with 2 engines (2L 4-cyl turbo, 3L 6-cyl turbo). Its most fuel-efficient configuration returns around 35 mpg (UK) / 29 mpg (US EPA) combined, with 29–35 mpg (UK) across all configurations. Owners often keep a Audi A7 workshop manual to hand for servicing and repairs.
Compared with the 2020 Audi A7: Fuel economy improves from 29 to 35 mpg (UK) combined on the most efficient configuration. EPA lists new engine options for 2021: 2L 4-cyl turbo.
Full Specifications
| Engine (most efficient) | 2L 4-cyl turbo |
|---|---|
| Engine options | 2L 4-cyl turbo · 3L 6-cyl turbo |
| Transmission (most efficient) | Automatic (AM-S7) |
| Fuel Type | Premium Gasoline |
| Powertrain | Plug-in Hybrid |
| Drive | All-Wheel Drive |
| Body Style | Hatchback |
| Passenger Volume (EPA) | 95 cu ft (2,690 L) |
| Luggage Volume (EPA) | 25 cu ft (708 L) |
| Fuel Economy (UK) | 35 combined / 31 urban / 41 extra-urban mpg |
| Fuel Economy (US EPA) | 29 combined / 26 city / 34 highway mpg |
| CO₂ Emissions | 86 g/km |
| EPA Greenhouse Gas Score | 5 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $2,850 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 2 configurations for the 2021 Audi A7 across 2 engines (2L 4-cyl turbo, 3L 6-cyl turbo). Combined fuel economy ranges from 24 to 29 mpg (US), or 29 to 35 mpg (UK), depending on engine, transmission and drive. 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 |
|---|---|---|---|---|---|---|
| 2L 4-cyl turbo (Plug-in Hybrid) | Automatic (AM-S7) | All-Wheel Drive | 35 | 29 (26/34) | 86 | $2,850 |
| 3L 6-cyl turbo (Hybrid) | Automatic (AM-S7) | All-Wheel Drive | 29 | 24 (22/29) | 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 95 cubic feet (about 2,690 litres) and luggage volume at 25 cubic feet (about 708 litres). These are US EPA interior-volume figures; they are measured differently from the boot capacity numbers UK manufacturers quote.
Owner Essentials for the 2021 Audi A7
Running Costs: 2021 Audi A7
Covering around 8,000 miles a year in a 2021 Audi A7 at 35 mpg combined, expect roughly 1,039 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $2,850 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.
2021 Audi A7 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.
Recalls & Owner Complaints (NHTSA)
NHTSA lists 11 safety recall campaigns that include the 2021 Audi A7 (as of 6 October 2026). Most affected areas: Electrical system (4), Back over prevention (2), Service brakes (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
- Back over prevention — campaign 25V900000, reported 19 December 2025. Risk: A rearview image that does not display reduces the driver's view behind the vehicle, increasing the risk of a crash.
- Electrical system — campaign 25V201000, reported 31 March 2025. Risk: An instrument panel display that fails to show critical safety information, such as the speedometer or warning lights, increases the risk of a crash.
- Electrical system — campaign 23V842000, reported 13 December 2023. Risk: An overheated outlet or charging cable can increase the risk of a fire.
- Service brakes — campaign 23V601000, reported 25 August 2023. Risk: Incorrect brake fluid can reduce braking ability and increase the risk of a crash.
Showing the 4 most recent of 11 campaigns.
Owners have filed 8 complaints with NHTSA about the 2021 Audi A7. The most-reported areas are Engine (5), Electrical system (3), Back over prevention (1).
Used-buyer checklist for the 2021 Audi A7
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Electrical system (4 recall campaigns · 3 owner complaints) — Test every switch, window, light and warning lamp on a test drive, and ask about battery or alternator replacements.
- Brakes (1 recall campaign) — Brake firmly from speed and look for pulling, vibration or a soft pedal; ask for brake service history.
- Tyres (1 recall campaign) — Check tyre age and wear and ask about any tyre recalls.
- Engine (5 owner complaints) — Listen for unusual noise on a cold start, check for warning lights and ask for the service records.
Source: US NHTSA recall and consumer-complaint databases, retrieved 6 October 2026. Complaints are unverified owner reports, not confirmed defects. Check any vehicle by VIN at nhtsa.gov/recalls, and see our guide to checking a used car for recalls.
How It Compares
Audi models in our database average about 27 mpg (UK) combined on their most efficient configuration; the 2021 Audi A7's 35 mpg is 8 mpg above that make average. Its 86 g/km CO₂ figure is 165 g/km lower than the 251 g/km Audi average.
Of the 14 Audi A7 model years we cover, the 2021 ranks 2nd for combined fuel economy on its best configuration (35 mpg UK combined, against a high of 36 mpg). See every Audi A7 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 2021 Audi A7
Frequently Asked Questions
What engine does the 2021 Audi A7 have?
EPA lists 2 engines for the 2021 Audi A7: 2L 4-cyl turbo, 3L 6-cyl turbo. The most fuel-efficient configuration pairs the 2L 4-cyl turbo with a automatic (am-s7).
What is the fuel economy of the 2021 Audi A7?
The most efficient configuration returns around 35 mpg (UK) combined, or 29 mpg on the US EPA cycle. Across all configurations the UK combined figure runs from 29 to 35 mpg.
How much does the 2021 Audi A7 cost to fuel per year?
The US EPA estimates about $2,850 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.
Does the 2021 Audi A7 have any recalls?
NHTSA lists 11 safety recall campaigns that include the 2021 Audi A7 (as of 6 October 2026). Most affected areas: Electrical system (4), Back over prevention (2), Service brakes (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
What are the most common problems reported for the 2021 Audi A7?
Among the 8 owner complaints filed with NHTSA, the most-reported areas are Engine (5 complaints), Electrical system (3 complaints), Back over prevention (1 complaint). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
How much interior and luggage space does the 2021 Audi A7 have?
EPA measures interior passenger volume at 95 cubic feet (about 2,690 litres) and luggage volume at 25 cubic feet (about 708 litres). These are US EPA interior-volume figures, which are measured differently from the UK boot-capacity numbers manufacturers quote.