2021 Audi S3 2.0 TFSI
Version: 2.0 TFSI S tronic 4WD Euro 6 (s/s) 5dr (306 bhp)
Price: £24,991. Fair price: £1,809 (6%) under the AskCar estimate of £26,800, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,001 priced Audi S3 adverts on AskCar as of 29 October 2026.
AskCar lists 1,031 used Audi S3 from 627 UK dealerships, as of 29 October 2026.
Overview
- Make
- Audi
- Model
- S3
- Version
- 2.0 TFSI S tronic 4WD Euro 6 (s/s) 5dr (306 bhp)
- Mileage
- 43,664 miles
- Year
- 2021
- Fuel type
- Petrol
- Body type
- Hatchback
- Engine
- 2.0 L
- Gearbox
- Automatic
- Power
- 306 bhp
- Seats
- 5
- Colour
- Black
- Doors
- 5
- Driven wheels
- Four Wheel Drive
- Gearbox version
- S tronic
- Engine badge
- TFSI
- Emissions standard
- Euro 6
About this car
This 2021 Audi S3 has covered 43,664 miles. The AskCar estimate for this car is £26,800. It is priced at £24,991, which is £1,809 below that estimate. The AskCar estimate uses UK dealer asking prices, including 1,001 Audi S3 adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert today. Its recorded MOT is valid until 1 April 2027, and its advertised mileage is consistent with the latest MOT reading. The seller is Cars of Penarth Road, based in Cardiff.
Stock data as of 29 October 2026.
Price history
AskCar first saw this advert on 29 October 2026.
| Date observed | Asking price |
|---|---|
| 29 October 2026 | £24,991 |
Price and mileage comparison
Fair price: £1,809 (6%) under the AskCar estimate of £26,800.
The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.
It draws on 1,001 priced Audi S3 adverts across different ages and specifications, as of 29 October 2026.
Advertised mileage is about 1,100 miles lower than the median mileage of a 2021 Audi S3 on AskCar.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT: valid until 1 April 2027. 38,934 miles at the last test.
Other matching cars
34 other 2021 Audi S3 automatic petrol cars are for sale at UK dealers from £20,990 to £31,050, as of 29 October 2026.
The 5 cheapest:
- 2021 Audi S3. Price: £20,990. Mileage: 92,000 miles. Dealer: S M Specialist Cars in Bedford. AskCar page: https://askcar.co.uk/car/audi-s3-2021-3f848ac5d7b5
- 2021 Audi S3. Price: £21,495. Mileage: 88,000 miles. Dealer: Derwent Motors in Derby. AskCar page: https://askcar.co.uk/car/audi-s3-2021-f78ed97bec98
- 2021 Audi S3. Price: £21,977. Mileage: 76,000 miles. Dealer: J.L.A.N Motor Group in Birmingham. AskCar page: https://askcar.co.uk/car/audi-s3-2021-33e87cf1587b
- 2021 Audi S3. Price: £22,990. Mileage: 63,000 miles. Dealer: Motomart in Halifax. AskCar page: https://askcar.co.uk/car/audi-s3-2021-17946adbef74
- 2021 Audi S3. Price: £22,998. Mileage: 70,566 miles. Dealer: Arnold Clark Preston Motorstore / BYD in Preston. AskCar page: https://askcar.co.uk/car/audi-s3-2021-75d0f5923fa8
The 34 matching cars have covered 13,300 to 92,000 miles, compared with 43,664 miles for this car.
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.
Browse all Audi S3 cars for sale · 2021 Audi S3 price guide
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Photos
37 photos of this car are on its AskCar page.
How to contact the dealer and its opening hours are on this AskCar page.
As of 29 October 2026, AskCar lists 587,923 cars and vans from 12,992 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.