2021 BMW 3 Series

2.0 320i M Sport Auto RWD Euro 6 (s/s) 4dr (181 bhp)

£21,298

Fair price: within 8% of the typical £22,849 for this model, age and mileage, drawing on 6,886 adverts of this make and model.

Overview

Make
BMW
Model
3 Series
Trim
M SPORT
Version
2.0 320i M Sport Auto RWD Euro 6 (s/s) 4dr (181 bhp)
Mileage
28,713 miles
Year
2021
Fuel type
Petrol
Body type
Saloon
Engine
2.0 L
Gearbox
Automatic
Power
181 bhp
Seats
5
CO2
146 g/km
Colour
White
Doors
4
Driven wheels
Rear Wheel Drive
Engine badge
320i
Emissions standard
Euro 6

About this car

This 2021 BMW 3 Series M Sport is advertised with 28,713 miles, approximately 26,000 below the typical mileage for its age. At £21,298, it is advertised £1,551 below our estimated market asking price of £22,849. Our estimate draws on 6,886 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this advert 35 days ago, and its asking price has since fallen by £700. MOT records show an expiry date of 16 September 2027, and the latest recorded mileage is consistent with the advert. The seller is CarSupermarket.com Barnsley, based in Barnsley.

Stock data from 22 October 2026.

How we estimate prices and check cars

Price history

First seen on 19 September 2026, 35 days ago. Advert duration calculated on 24 October 2026. Net asking-price reduction: £700 from the first recorded £21,998. 3 price reductions recorded, the latest observed on 22 October 2026.

Recorded asking prices
Date observedAsking price
19 September 2026£21,998
24 September 2026£21,798
8 October 2026£21,498
22 October 2026£21,298

Price and mileage comparison

Estimated market asking price: £22,849. The asking price is £1,551 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 6,886 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 26,000 miles lower than typical for a 2021 BMW 3 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 16 September 2027. 28,714 miles at the last test.

178 other cars with the same year, trim, gearbox and fuel are for sale from £14,000 to £29,990.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£14,000110,887 miles
£14,00093,863 miles
£14,33588,796 miles
£14,89593,000 miles
£14,99587,565 miles

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 BMW 3 Series cars for sale · 2021 BMW 3 Series price guide

How to contact the dealer, its opening hours and the cheaper cars like this one are on this AskCar page.

Vehicle photos

AskCar lists 588,092 cars from 13,071 UK dealer locations, read and updated daily from dealer websites. More than any other UK site. No dealer pays to be listed.