2021 Audi S3 2.0 TFSI
Price: £25,855. Fair price: £506 (1%) under the AskCar estimate of £26,361, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,017 priced Audi S3 adverts on AskCar as of 7 November 2026.
AskCar lists 1,043 used Audi S3 from 641 UK dealerships, as of 7 November 2026.
Overview
- Make: Audi
- Model: S3
- Version: 2.0 TFSI S tronic 4WD Euro 6 (s/s) 5dr (306 bhp)
- Year: 2021
- Mileage: 44,499 miles
- Fuel: Petrol
- Body: Hatchback, 5 doors, 5 seats
- Engine: 2.0 litres, 306 bhp
- Gearbox: Automatic (S tronic)
- Drive: Four-wheel drive
- Colour: Grey
- CO2: 184 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
The advertised mileage for this 2021 Audi S3 is 44,499 miles. Priced at £25,855, it is advertised £506 below the AskCar estimate of £26,361. The AskCar estimate uses 1,017 UK dealer adverts for the Audi S3, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this car for sale 9 days ago. Its advertised mileage matches the government's MOT record. The seller is Marriott Motor Group Kings Lynn Audi, based in Kings Lynn. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 7 November 2026.
Price
Fair price: £506 (1%) under the AskCar estimate of £26,361.
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 1,017 priced Audi S3 adverts across different ages and specifications, as of 7 November 2026.
A 2021 Audi S3 with the 2.0 petrol engine is typically advertised at £25,700: the median of the 46 for sale on AskCar, as of 7 November 2026.
Time on sale
This 2021 Audi S3 has been on sale for at least 9 days.
Price history
AskCar first saw this advert on 29 October 2026 at £25,855. Its asking price has not changed.
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 25 June 2027.
It has had 3 MOTs. The latest, on 27 May 2026, passed.
Advisories at the latest test: front windscreen damaged but not adversely affecting driver's view.
Mileage at that test: 43,793 miles, which matches the advertised 44,499 miles.
Advertised mileage is about 100 miles lower than the median mileage of a 2021 Audi S3 on AskCar.
Browse all Audi S3 cars for sale · 2021 Audi S3 price guide
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Photos
47 photos of this car are on its AskCar page.
As of 7 November 2026, AskCar lists 601,018 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.