2021 BMW 3 Series

2.0 318i M Sport Auto RWD Euro 6 (s/s) 4dr (154 bhp)

£20,490

Fair price: within 8% of the typical £20,150 for this model, age and mileage, drawing on 6,724 adverts of this make and model.

Overview

Make
BMW
Model
3 Series
Trim
M SPORT
Version
2.0 318i M Sport Auto RWD Euro 6 (s/s) 4dr (154 bhp)
Mileage
42,772 miles
Year
2021
Fuel type
Petrol
Body type
Saloon
Engine
2.0 L
Gearbox
Automatic
Power
154 bhp
Seats
5
CO2
146 g/km
Colour
Blue
Doors
4
Driven wheels
Rear Wheel Drive
Engine badge
318i
Emissions standard
Euro 6

About this car

This 2021 BMW 3 Series M Sport is advertised with 42,772 miles, approximately 11,900 below the typical mileage for its age. Our estimated market asking price is £20,150. This car is advertised at £20,490, which is £340 above that figure. The estimate uses 6,724 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records 23 days ago. MOT records show an expiry date of 29 December 2026, and the latest recorded mileage is consistent with the advert. The seller is Lloyd Colne BMW, based in Colne.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 2 October 2026, 23 days ago. Advert duration calculated on 25 October 2026.

Recorded asking prices
Date observedAsking price
2 October 2026£20,490
23 October 2026£20,490

Price and mileage comparison

Estimated market asking price: £20,150. The asking price is £340 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 6,724 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 11,900 miles lower than typical for a 2021 BMW 3 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 29 December 2026. 31,928 miles at the last test.

181 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

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