2021 BMW 3 Series 2.0 330i M Sport

Price: £22,995. Fair price: £360 (1%) under the AskCar estimate of £23,355, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,886 priced BMW 3 Series adverts on AskCar as of 7 November 2026.

AskCar lists 7,202 used BMW 3 Series from 2,724 UK dealerships, as of 7 November 2026.

Overview

  • Make: BMW
  • Model: 3 Series
  • Trim: M Sport
  • Version: 2.0 330i M Sport Auto RWD Euro 6 4dr (254 bhp)
  • Year: 2021
  • Mileage: 42,851 miles
  • Fuel: Petrol
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 2.0 litres, 254 bhp
  • Gearbox: Automatic
  • Drive: Rear-wheel drive
  • Colour: White
  • CO2: 148 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport is advertised with 42,851 miles, approximately 12,300 below the typical mileage for its age. The dealer is asking £22,995, which is £360 below the AskCar estimate of £23,355. To work out the AskCar estimate, we analyse UK dealer adverts for 6,886 BMW 3 Series cars across different ages and specifications. It first appeared in our advert records today. Its advertised mileage matches the government's MOT record. The seller is MINI UK at Barretts Canterbury, based in Canterbury. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £360 (1%) under the AskCar estimate of £23,355.

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 6,886 priced BMW 3 Series adverts across different ages and specifications, as of 7 November 2026.

Time on sale

AskCar first saw this 2021 BMW 3 Series advertised today. About half of 2021 BMW 3 Series cars are gone from sale within a month of being advertised: 436 of the 925 first advertised between 10 July 2026 and 4 October 2026.

Price history

AskCar first saw this advert on 7 November 2026 at £22,995. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 16 September 2027.

It has had 3 MOTs. The latest, on 14 September 2026, passed.

Advisories at the latest test: nearside front tyre slightly damaged/cracking or perishing; offside front tyre slightly damaged/cracking or perishing; nearside rear tyre slightly damaged/cracking or perishing; and 1 more.

Mileage at that test: 42,253 miles, which matches the advertised 42,851 miles.

Advertised mileage is about 12,300 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

142 other 2021 BMW 3 Series M Sport 2.0 petrol automatic saloons are for sale at UK dealers, from £13,750 to £25,975, as of 7 November 2026.

The 3 closest to this car in mileage:

  • 2021 BMW 3 Series M Sport, 2.0 petrol saloon, blue. Mileage: 42,772 miles. Price: £20,490, £2,505 less than this car. Dealer: Lloyd Colne BMW in Colne. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-29e51ca83ee4
  • 2021 BMW 3 Series M Sport, 2.0 petrol saloon, blue. Mileage: 42,772 miles. Price: £20,490, £2,505 less than this car. Dealer: Lloyd Colne BMW in Colne. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-3181735f1e81
  • 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 43,000 miles. Price: £20,985, £2,010 less than this car. Dealer: Brooklands Motor Centre in Leeds. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-bbd215a52f63
  • The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, blue, 14 miles from this car. Mileage: 23,623 miles. Price: £23,495, £500 more than this car. Dealer: JCB Group Ashford Orbital Kia in Ashford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-7d14ce336447

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

More like this

Photos

1 photo of this car is on its AskCar page.

As of 7 November 2026, AskCar lists 601,018 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.