2021 BMW 3 Series 2.0 320i M Sport

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: 67,128 miles
• Fuel: Petrol
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 153 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport is advertised with 67,128 miles, approximately 12,300 above the typical mileage for its age. The AskCar estimate for this car is £19,087. It is priced at £19,998, which is £911 above that estimate. The AskCar estimate draws on 6,897 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert for 12 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Arnold Clark Stirling Volvo / GWM / BYD, based in Stirling. 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: £911 (4%) over the AskCar estimate of £19,087.

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 12 days.

Price history

AskCar first saw this advert on 24 October 2026 at £19,998. 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 11 October 2027.

It has had 4 MOTs. The latest, on 12 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 67,133 miles, which matches the advertised 67,128 miles.

Advertised mileage is about 12,300 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, white. Mileage: 66,232 miles. Price: £17,999, £1,999 less than this car. Dealer: Charles Hurst Usedirect Belfast 62 Boucher Road in Belfast. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-199c6ed0c749
• 2021 BMW 3 Series M Sport, 2.0 petrol estate, white. Mileage: 69,314 miles. Price: £19,498, £500 less 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, £2,307 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, 46 miles from this car. Mileage: 34,786 miles. Price: £28,498, £8,500 more than this car. Dealer: Arnold Clark Irvine BMW in Irvine. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-c70510099d1a