2021 Audi A3

Overview

Make

Audi

Model

A3

Trim

S LINE

Version

1.5 TFSI 35 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (148 bhp)

Mileage

40,000 miles

Year

2021

Fuel type

Petrol Hybrid

Body type

Hatchback

Engine

1.5 L

Gearbox

Automatic

Power

148 bhp

Seats

5

CO2

135 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 40,000 miles, around 2,800 fewer than typical for its age. At £17,985, it is advertised £526 below our estimated market asking price of £18,511. To estimate its market asking price, we analyse UK dealer adverts for 6,484 Audi A3 cars across different ages and specifications. It first appeared in our advert records 10 days ago. Its recorded MOT is valid until 7 April 2027, and its advertised mileage is consistent with the latest MOT reading. The seller is Cedar Specialist Cars, based in Mansfield.

Stock data from 19 October 2026.

How we estimate prices and check cars

Price and mileage comparison

Estimated market asking price: £18,511. The asking price is £526 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 6,484 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 2,800 miles lower than typical for a 2021 Audi A3.

The advertised mileage is consistent with the last MOT reading.