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) 4dr (181 bhp)
• Year: 2021
• Mileage: 15,556 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 146 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport has covered 15,556 miles, around 39,300 fewer miles than is typical for its age. The AskCar estimate for this car is £24,221. It is priced at £24,918, which is £697 above that estimate. The AskCar estimate uses UK dealer asking prices, including 6,897 BMW 3 Series adverts, and accounts for the car’s age, mileage and specification. We first recorded this advert 72 days ago, and its asking price has since fallen by £1,073. Its advertised mileage matches the government's MOT record. The seller is Bowker BMW Preston, based in Preston. 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: £697 (2%) over the AskCar estimate of £24,221.

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 72 days.

Price history

AskCar first saw this advert on 25 August 2026 at £25,991. Its asking price is now £24,918, £1,073 less. The latest price cut was seen on 20 October 2026.

Price changes recorded:

• 25 August 2026: £25,991
• 2 September 2026: £27,000
• 12 September 2026: £25,520
• 13 October 2026: £25,290
• 20 October 2026: £24,918

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 21 March 2027.

It has had 3 MOTs. The latest, on 23 February 2026, passed.

Advisories at the latest test: rear tyre worn close to legal limit/worn on edge offside & nearside.

Mileage at that test: 14,503 miles, which matches the advertised 15,556 miles.

Advertised mileage is about 39,300 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

146 other 2021 BMW 3 Series M Sport 2.0 petrol automatic saloons are for sale at UK dealers, from £14,000 to £26,950, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, blue. Mileage: 13,692 miles. Price: £23,349, £1,569 less than this car. Dealer: Prestige Cars Kent in Bromley. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-ca8b94871c3f
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black. Mileage: 19,786 miles. Price: £24,000, £918 less than this car. Dealer: Sytner High Wycombe BMW in High Wycombe. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-5a3c70a28591
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, grey. Mileage: 20,400 miles. Price: £23,990, £928 less than this car. Dealer: Colin Bryan T/A CB Autosales in Kirkcaldy. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-3dd19b655cf3

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black, under a mile from this car. Mileage: 27,050 miles. Price: £21,633, £3,285 less than this car. Dealer: Bowker BMW Preston in Preston. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-4a9e90755562