2021 BMW 3 Series 2.0 320d MHT M Sport

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

Price: £18,890. Fair price: £453 (2%) under the AskCar estimate of £19,343, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,718 priced BMW 3 Series adverts on AskCar as of 31 October 2026.

AskCar lists 6,973 used BMW 3 Series from 2,626 UK dealerships, as of 31 October 2026.

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
69,996 miles
Year
2021
Fuel type
Diesel
Body type
Saloon
Engine
2.0 L
Gearbox
Automatic
Power
187 bhp
Seats
5
CO2
129 g/km
Colour
White
Doors
4
Driven wheels
Rear Wheel Drive
Engine badge
320d; MHT
Hybrid type
Mild hybrid
Emissions standard
Euro 6

About this car

With 69,996 miles on the clock, this 2021 BMW 3 Series M Sport has done roughly 15,000 more miles than a typical 2021 BMW 3 Series. Priced at £18,890, it is advertised £453 below the AskCar estimate of £19,343. To work out the AskCar estimate, we analyse UK dealer adverts for 6,718 BMW 3 Series cars across different ages and specifications. The asking price is now £470 lower than when we first recorded the advert 30 days ago. Its advertised mileage is consistent with the latest recorded MOT reading. You can find this car at Lookers in Belfast.

Stock data as of 31 October 2026.

How we estimate prices and check cars

Price history

AskCar first saw this advert on 1 October 2026, 30 days ago. Price reduced by £470 from £19,360 since AskCar first saw it. 3 price reductions recorded, the latest seen on 31 October 2026.

Recorded asking prices
Date observedAsking price
1 October 2026£19,360
2 October 2026£18,949
13 October 2026£18,899
31 October 2026£18,890

Price and mileage comparison

Fair price: £453 (2%) under the AskCar estimate of £19,343.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 6,718 priced BMW 3 Series adverts across different ages and specifications, as of 31 October 2026.

Advertised mileage is about 15,000 miles higher than the median mileage of a 2021 BMW 3 Series on AskCar.

The advertised mileage is consistent with the last MOT reading.

Other matching cars

106 other 2021 BMW 3 Series M Sport automatic diesel cars are for sale at UK dealers from £13,500 to £28,995, as of 31 October 2026.

The 5 cheapest:

The 106 matching cars have covered 15,500 to 131,041 miles, compared with 69,996 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.

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

More like this

Photos

30 photos of this car are on its AskCar page.

How to contact the dealer and its opening hours are on this AskCar page.

As of 31 October 2026, AskCar lists 583,548 cars and vans from 12,716 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.