2021 Audi A3

1.4 13kWh TFSIe 45 S Line Competition S tronic FWD Euro 6 (s/s) 5dr Sportback (242 bhp)

£19,690

Fair price: within 8% of the typical £19,879 for this model, age and mileage, drawing on 6,439 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
33,572 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

This 2021 Audi A3 S Line Competition has covered 33,572 miles, around 9,400 fewer than typical for its age. At £19,690, it is advertised £189 below our estimated market asking price of £19,879. We use UK dealer asking prices, including 6,439 Audi A3 listings, and account for the car’s age, mileage and specification. Since we first spotted the advert 56 days ago, the asking price has dropped by £1,800. MOT records show an expiry date of 9 December 2026, and the latest recorded mileage is consistent with the advert. The seller is Group 1 Automotive Finchley Road Audi, based in London.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 31 August 2026, 56 days ago. Advert duration calculated on 26 October 2026. Net asking-price reduction: £1,800 from the first recorded £21,490. 6 price reductions recorded, the latest observed on 19 October 2026.

Recorded asking prices
Date observedAsking price
31 August 2026£21,490
5 September 2026£21,250
9 September 2026£20,990
11 September 2026£20,690
4 October 2026£20,490
14 October 2026£20,290
19 October 2026£19,690
23 October 2026£19,690

Price and mileage comparison

Estimated market asking price: £19,879. The asking price is £189 below 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 6,439 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 9,400 miles lower than typical for a 2021 Audi A3.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 9 December 2026. 29,575 miles at the last test.

9 other cars with the same year, trim, gearbox and fuel are for sale from £13,000 to £22,995.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£13,000113,000 miles
£16,99558,778 miles
£17,44069,301 miles
£18,49848,768 miles
£18,61042,184 miles

These cars have covered 10,000–113,000 miles, compared with 33,572 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

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