2021 BMW 3 Series

2.0 320d MHT M Sport Auto RWD Euro 6 (s/s) 4dr (187 bhp)

£20,000

Fair price: within 8% of the typical £21,341 for this model, age and mileage, drawing on 6,693 adverts of this make and model.

Overview

Make
BMW
Model
3 Series
Trim
M SPORT
Version
2.0 320d MHT M Sport Auto RWD Euro 6 (s/s) 4dr (187 bhp)
Mileage
56,000 miles
Year
2021
Fuel type
Diesel Hybrid
Body type
Saloon
Engine
2.0 L
Gearbox
Automatic
Power
187 bhp
Seats
5
CO2
129 g/km
Colour
Blue
Doors
4
Driven wheels
Rear Wheel Drive
Engine badge
320d; MHT
Hybrid type
Mild hybrid
Emissions standard
Euro 6

About this car

The advertised mileage for this 2021 BMW 3 Series M Sport is 56,000 miles. At £20,000, it is advertised £1,341 below our estimated market asking price of £21,341. The estimate uses 6,693 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 154 days ago. Its asking price has since fallen by £1,500. That history is worth bearing in mind when speaking to the dealer. The seller is Praters, based in Leighton Buzzard.

Stock data from 28 October 2026.

How we estimate prices and check cars

Price history

First seen on 28 May 2026, 154 days ago. Advert duration calculated on 29 October 2026. Net asking-price reduction: £1,500 from the first recorded £21,500. 3 price reductions recorded, the latest observed on 21 September 2026.

Recorded asking prices
Date observedAsking price
29 May 2026£21,500
11 July 2026£21,500
9 August 2026£21,000
10 August 2026£21,000
29 August 2026£19,950
21 September 2026£19,500
28 October 2026£20,000

Price and mileage comparison

Estimated market asking price: £21,341. The asking price is £1,341 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 6,693 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 1,300 miles higher than typical for a 2021 BMW 3 Series.

103 other cars with the same year, trim, gearbox and fuel are for sale from £13,500 to £28,995.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£13,500131,041 miles
£13,999102,000 miles
£14,495131,000 miles
£15,49595,320 miles
£15,995111,015 miles

These cars have covered 15,500–131,041 miles, compared with 56,000 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 BMW 3 Series cars for sale · 2021 BMW 3 Series price guide

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