2021 Audi A3
1.4 13kWh TFSIe 45 S Line Competition S tronic FWD Euro 6 (s/s) 5dr Sportback (242 bhp)
£21,400
Fair price: within 8% of the typical £21,037 for this model, age and mileage, drawing on 6,542 adverts of this make and model.
Overview
- Make
- Audi
- Model
- A3
- Trim
- S LINE COMPETITION
- Version
- 1.4 13kWh TFSIe 45 S Line Competition S tronic FWD Euro 6 (s/s) 5dr Sportback (242 bhp)
- Mileage
- 21,954 miles
- Year
- 2021
- Fuel type
- Petrol Plug-in Hybrid
- Body type
- Hatchback
- Engine
- 1.4 L
- Gearbox
- Automatic
- Power
- 242 bhp
- Seats
- 5
- CO2
- 30 g/km
- Colour
- White
- Doors
- 5
- Driven wheels
- Front Wheel Drive
- Gearbox version
- S tronic
- Engine badge
- TFSIe
- Hybrid type
- Plug-in hybrid
- Emissions standard
- Euro 6
About this car
At 21,954 miles, this 2021 Audi A3 S Line Competition has covered about 20,900 fewer miles than other 2021 Audi A3 cars. The dealer is asking £21,400, which is £363 above our market estimate of £21,037. To estimate its market asking price, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. We first saw this car advertised 31 days ago. Its asking price has since fallen by £100. The seller is Sytner Select Swindon, based in Swindon.
Stock data from 22 October 2026.
Price history
First seen on 23 September 2026, 31 days ago. Advert duration calculated on 24 October 2026. Net asking-price reduction: £100 from the first recorded £21,500. 1 price reduction recorded, the latest observed on 22 October 2026.
| Date observed | Asking price |
|---|---|
| 23 September 2026 | £21,500 |
| 22 October 2026 | £21,400 |
Price and mileage comparison
Estimated market asking price: £21,037. The asking price is £363 above this estimate.
The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.
The pricing calculation includes 6,542 adverts of this make and model across different ages and specifications.
Advertised mileage is approximately 20,900 miles lower than typical for a 2021 Audi A3.
9 other cars with the same year, trim, gearbox and fuel are for sale from £13,000 to £22,995.
| Asking price | Mileage |
|---|---|
| £13,000 | 113,000 miles |
| £16,995 | 58,778 miles |
| £17,440 | 69,301 miles |
| £18,498 | 48,768 miles |
| £18,610 | 42,184 miles |
These cars have covered 10,000–113,000 miles, compared with 21,954 miles for this car.
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.
Browse all Audi A3 cars for sale · 2021 Audi A3 price guide
How to contact the dealer, its opening hours and the cheaper cars like this one are on this AskCar page.
Vehicle photos
- 2021 Audi A3 photo 1
- 2021 Audi A3 photo 2
- 2021 Audi A3 photo 3
- 2021 Audi A3 photo 4
- 2021 Audi A3 photo 5
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- 2021 Audi A3 photo 8
- 2021 Audi A3 photo 9
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