2021 Audi A3 1.4 TFSIe S Line
Price: £14,999. Good value: £2,734 (15%) under the AskCar estimate of £17,733, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,729 priced Audi A3 adverts on AskCar as of 6 November 2026.
AskCar lists 6,900 used Audi A3 from 2,320 UK dealerships, as of 6 November 2026.
Overview
- Make: Audi
- Model: A3
- Trim: S Line
- Version: 1.4 TFSIe 40 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (201 bhp)
- Year: 2021
- Mileage: 46,600 miles
- Fuel: Plug-in hybrid (petrol)
- Body: Hatchback, 5 doors, 5 seats
- Engine: 1.4 litres, 201 bhp
- Gearbox: Automatic (S tronic)
- Drive: Front-wheel drive
- Emissions standard: Euro 6, ULEZ compliant
About this car
At 46,600 miles, this 2021 Audi A3 S Line has covered about 4,200 more miles than other 2021 Audi A3 cars. The AskCar estimate for this car is £17,733. It is priced at £14,999, which is £2,734 below that estimate. The AskCar estimate draws on 6,729 Audi A3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale today. The seller is Wiltshire & Sons Farnham, based in Farnham. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 6 November 2026.
Price
Good value: £2,734 (15%) under the AskCar estimate of £17,733.
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 6,729 priced Audi A3 adverts across different ages and specifications, as of 6 November 2026.
A 2021 Audi A3 with the 1.4 plug-in hybrid engine is typically advertised at £16,000: the median of the 82 for sale on AskCar, as of 6 November 2026.
Time on sale
AskCar first saw this 2021 Audi A3 advertised today. About 6 in 10 of 2021 Audi A3 cars are gone from sale within a month of being advertised: 433 of the 772 first advertised between 7 July 2026 and 3 October 2026.
Price history
AskCar first saw this advert on 6 November 2026 at £14,999. Its asking price has not changed.
Mileage and MOT
Advertised mileage is about 4,200 miles higher than the median mileage of a 2021 Audi A3 on AskCar.
Similar cars
45 other 2021 Audi A3 S Line 1.4 plug-in hybrid automatic hatchbacks are for sale at UK dealers, from £11,400 to £21,995, as of 6 November 2026.
The 3 closest to this car in mileage:
- 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, black. Mileage: 47,365 miles. Price: £16,150, £1,151 more than this car. Dealer: John Banks Hyundai in Cambridge. AskCar page: https://askcar.co.uk/car/audi-a3-2021-a24c857fb777
- 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, black. Mileage: 47,612 miles. Price: £15,198, £199 more than this car. Dealer: BTS Cars in Derby. AskCar page: https://askcar.co.uk/car/audi-a3-2021-04d100abc3c3
- 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, blue. Mileage: 45,381 miles. Price: £16,699, £1,700 more than this car. Dealer: cinch Bellevue in Hook. AskCar page: https://askcar.co.uk/car/audi-a3-2021-ebdbd39f3ddb
- The nearest: 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, white, 1 miles from this car. Mileage: 80,000 miles. Price: £14,250, £749 less than this car. Dealer: JCS Motor Company in Aldershot. AskCar page: https://askcar.co.uk/car/audi-a3-2021-bd0e63088481
Browse all Audi A3 cars for sale · 2021 Audi A3 price guide
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Photos
15 photos of this car are on its AskCar page.
As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.