2021 Audi A3 1.4 TFSIe S Line Competition
Price: £13,000. Above the going rate: £1,171 (9%) over the AskCar estimate of £11,829, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,542 priced Audi A3 adverts on AskCar as of 2 November 2026.
AskCar lists 6,720 used Audi A3 from 2,302 UK dealerships, as of 2 November 2026.
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)
- Year: 2021
- Mileage: 113,000 miles
- Fuel: Plug-in hybrid (petrol)
- Body: Hatchback, 5 doors, 5 seats
- Engine: 1.4 litres, 242 bhp
- Gearbox: Automatic (S tronic)
- Drive: Front-wheel drive
- Colour: Black
- CO2: 30 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2021 Audi A3 S Line Competition is advertised with 113,000 miles, approximately 69,400 above the typical mileage for its age. The AskCar estimate for this car is £11,829. It is priced at £13,000, which is £1,171 above that estimate. The AskCar estimate draws on 6,542 Audi A3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 53 days ago. It is advertised by Car Solutions Bedfordshire in Luton. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 2 November 2026.
Price
Above the going rate: £1,171 (9%) over the AskCar estimate of £11,829.
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 6,542 priced Audi A3 adverts across different ages and specifications, as of 2 November 2026.
A 2021 Audi A3 with the 1.4 plug-in hybrid engine is typically advertised at £15,900: the median of the 77 for sale on AskCar, as of 2 November 2026.
Time on sale
This 2021 Audi A3 has been on sale for at least 53 days.
Price history
AskCar first saw this advert on 10 September 2026 at £13,000. Its asking price has not changed.
Mileage and MOT
Advertised mileage is about 69,400 miles higher than the median mileage of a 2021 Audi A3 on AskCar.
Similar cars
6 other 2021 Audi A3 S Line Competition 1.4 plug-in hybrid automatic hatchbacks are for sale at UK dealers, from £15,570 to £21,295, as of 2 November 2026.
The 3 closest to this car in mileage:
- 2021 Audi A3 S Line Competition, 1.4 plug-in hybrid hatchback, grey. Mileage: 75,605 miles. Price: £15,570, £2,570 more than this car. Dealer: Evans Halshaw BYD Rotherham in Rotherham. AskCar page: https://askcar.co.uk/car/audi-a3-2021-a4a69cc1e7ec
- 2021 Audi A3 S Line Competition, 1.4 plug-in hybrid hatchback, black. Mileage: 72,032 miles. Price: £15,991, £2,991 more than this car. Dealer: Cardiff Trade Sales in Cardiff. AskCar page: https://askcar.co.uk/car/audi-a3-2021-421b4f519b80
- 2021 Audi A3 S Line Competition, 1.4 plug-in hybrid hatchback, white. Mileage: 48,768 miles. Price: £18,498, £5,498 more than this car. Dealer: Arnold Clark Benton Chery in Benton. AskCar page: https://askcar.co.uk/car/audi-a3-2021-eb2bebedc011
- The nearest: 2021 Audi A3 S Line Competition, 1.4 plug-in hybrid hatchback, white, 26 miles from this car. Mileage: 14,461 miles. Price: £21,295, £8,295 more than this car. Dealer: Group 1 Automotive Chingford Audi in Chingford. AskCar page: https://askcar.co.uk/car/audi-a3-2021-31864666757c
Browse all Audi A3 cars for sale · 2021 Audi A3 price guide
More like this
- Used Audi A3 S Line Competition prices
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- Used Audi A3 for sale near Luton
Photos
1 photo of this car is on its AskCar page.
As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.