2021 BMW 3 Series 2.0 318i M Sport

Overview

• Make: BMW
• Model: 3 Series
• Trim: M Sport
• Version: 2.0 318i M Sport Auto RWD Euro 6 (s/s) 5dr Touring (154 bhp)
• Year: 2021
• Mileage: 66,232 miles
• Fuel: Petrol
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 154 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 153 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport has covered 66,232 miles, around 11,400 more miles than is typical for its age. The dealer is asking £17,999, which is £57 above the AskCar estimate of £17,942. To work out the AskCar estimate, we analyse UK dealer adverts for 6,897 BMW 3 Series cars across different ages and specifications. It first appeared in our advert records 1 day ago. Its recorded MOT is valid until 1 July 2027. The seller is Charles Hurst Usedirect Belfast 62 Boucher Road, based in Belfast. 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: £57 (under 1%) over the AskCar estimate of £17,942.

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

AskCar first saw this 2021 BMW 3 Series advertised 1 day ago. About half of 2021 BMW 3 Series cars are gone from sale within a month of being advertised: 429 of the 907 first advertised between 10 July 2026 and 2 October 2026.

Price history

AskCar first saw this advert on 4 November 2026 at £17,999. 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 5 November 2026: valid until 1 July 2027.

Advertised mileage is about 11,400 miles higher 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, grey. Mileage: 67,128 miles. Price: £19,998, £1,999 more than this car. Dealer: Arnold Clark Stirling Volvo / GWM / BYD in Stirling. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-61b8f3e6ecca
• 2021 BMW 3 Series M Sport, 2.0 petrol estate, white. Mileage: 69,314 miles. Price: £19,498, £1,499 more than this car. Dealer: Arnold Clark Wirral Renault / Dacia in Birkenhead. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-54046ed0204f
• 2021 BMW 3 Series M Sport, 2.0 petrol estate, grey. Mileage: 70,032 miles. Price: £17,691, £308 less than this car. Dealer: Quality Part X Dunstable in Dunstable. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-d67c14634502

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol estate, white, 88 miles from this car. Mileage: 34,786 miles. Price: £28,498, £10,499 more than this car. Dealer: Arnold Clark Irvine BMW in Irvine. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-c70510099d1a