2021 Audi A3

Overview

Make

Audi

Model

A3

Trim

S LINE

Version

1.0 TFSI 30 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (108 bhp)

Mileage

35,752 miles

Year

2021

Fuel type

Petrol Hybrid

Body type

Hatchback

Engine

1.0 L

Gearbox

Automatic

Power

108 bhp

Seats

5

CO2

124 g/km

Colour

Grey

Doors

5

Driven wheels

Front Wheel Drive

Gearbox version

S tronic

Engine badge

TFSI

Hybrid type

Mild hybrid

Emissions standard

Euro 6

About this car

This 2021 Audi A3 S Line has covered 35,752 miles, around 7,200 fewer than typical for its age. At £17,995, it is advertised £482 above our estimated market asking price of £17,513. The estimate uses 6,532 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 20 days ago, the asking price has dropped by £1,055. MOT records show an expiry date of 5 November 2026, and the latest recorded mileage is consistent with the advert. The seller is Group 1 Automotive Southend Audi, based in Southend.

Stock data from 20 October 2026.

How we estimate prices and check cars

Price and mileage comparison

Estimated market asking price: £17,513. The asking price is £482 above 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 6,532 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 7,200 miles lower than typical for a 2021 Audi A3.

The advertised mileage is consistent with the last MOT reading.