2021 BMW 3 Series 2.0 320i M Sport

Price: £22,000. Fair price: £1,187 (5%) over the AskCar estimate of £20,813, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,897 priced BMW 3 Series adverts on AskCar as of 5 November 2026.

AskCar lists 7,194 used BMW 3 Series from 2,714 UK dealerships, as of 5 November 2026.

Overview

  • Make: BMW
  • Model: 3 Series
  • Trim: M Sport
  • Version: 2.0 320i M Sport Auto RWD Euro 6 (s/s) 5dr Touring (181 bhp)
  • Year: 2021
  • Mileage: 54,700 miles
  • Fuel: Petrol
  • Body: Estate, 5 doors, 5 seats
  • Engine: 2.0 litres, 181 bhp
  • Gearbox: Automatic
  • Drive: Rear-wheel drive
  • Colour: White
  • CO2: 153 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2021 BMW 3 Series M Sport is 54,700 miles. Its asking price of £22,000 is £1,187 above the AskCar estimate of £20,813. To work out the AskCar estimate, we analyse UK dealer adverts for 6,897 BMW 3 Series cars across different ages and specifications. Since we first spotted the advert 148 days ago, the asking price has dropped by £1,000. We checked its advertised mileage against the government's MOT record, and they match. You can find this car at Colin Ludwell Cars in Bristol. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,187 (5%) over the AskCar estimate of £20,813.

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 6,897 priced BMW 3 Series adverts across different ages and specifications, as of 5 November 2026.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 148 days.

Price history

AskCar first saw this advert on 10 June 2026 at £23,000. Its asking price is now £22,000, £1,000 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

  • 10 July 2026: £23,000
  • 13 August 2026: £22,700
  • 30 September 2026: £22,500
  • 27 October 2026: £22,000

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 14 December 2026.

It has had 3 MOTs. The latest, on 12 December 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 46,115 miles, which matches the advertised 54,700 miles.

Advertised mileage is about 100 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

30 other 2021 BMW 3 Series M Sport 2.0 petrol automatic estates are for sale at UK dealers, from £14,495 to £29,990, as of 5 November 2026.

The 3 closest to this car in mileage:

  • 2021 BMW 3 Series M Sport, 2.0 petrol estate, black. Mileage: 54,691 miles. Price: £19,240, £2,760 less than this car. Dealer: Big Motoring World Cannock in Cannock. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-9bdf6b0219e1
  • 2021 BMW 3 Series M Sport, 2.0 petrol estate, blue. Mileage: 52,870 miles. Price: £20,250, £1,750 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-3374642d7d9a
  • 2021 BMW 3 Series M Sport, 2.0 petrol estate, black. Mileage: 59,362 miles. Price: £22,000, the same price as this car. Dealer: Sytner Shrewsbury BMW in Shrewsbury. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-abcd5735acbc
  • The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol estate, black, under a mile from this car. Mileage: 61,100 miles. Price: £24,300, £2,300 more than this car. Dealer: Colin Ludwell Cars in Bristol. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-143fe5097e0d

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

More like this

Photos

45 photos of this car are on its AskCar page.

As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.