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: £21,790. Fair price: £599 (2%) under the AskCar estimate of £22,389, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,706 priced BMW 3 Series adverts on AskCar as of 30 October 2026.

AskCar lists 6,987 used BMW 3 Series from 2,629 UK dealerships, as of 30 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
48,500 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
Grey
Doors
4
Driven wheels
Rear Wheel Drive
Engine badge
320d; MHT
Hybrid type
Mild hybrid
Emissions standard
Euro 6

About this car

At 48,500 miles, this 2021 BMW 3 Series M Sport has covered about 6,200 fewer miles than other 2021 BMW 3 Series cars. Priced at £21,790, it is advertised £599 below the AskCar estimate of £22,389. The AskCar estimate uses 6,706 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. This car was first seen in our listings data today. MOT records show an expiry date of 20 August 2027, and the latest recorded mileage is consistent with the advert. The seller is S James Prestige, based in Stamford.

Stock data as of 30 October 2026.

How we estimate prices and check cars

Price history

AskCar first saw this advert on 30 October 2026.

Recorded asking prices
Date observedAsking price
30 October 2026£21,790

Price and mileage comparison

Fair price: £599 (2%) under the AskCar estimate of £22,389.

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 6,706 priced BMW 3 Series adverts across different ages and specifications, as of 30 October 2026.

Advertised mileage is about 6,200 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT: valid until 20 August 2027. 46,972 miles at the last test.

Other matching cars

110 other 2021 BMW 3 Series M Sport automatic diesel cars are for sale at UK dealers from £13,500 to £28,995, as of 30 October 2026.

The 5 cheapest:

The 110 matching cars have covered 15,500 to 131,041 miles, compared with 48,500 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

12 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 30 October 2026, AskCar lists 580,490 cars and vans from 12,695 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.