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 4WD Euro 6 4dr (181 bhp)
• Year: 2021
• Mileage: 35,384 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 154 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 35,384 miles on the clock, this 2021 BMW 3 Series M Sport has done roughly 19,400 fewer miles than a typical 2021 BMW 3 Series. The dealer is asking £23,995, which is £1,187 above the AskCar estimate of £22,808. To work out the AskCar estimate, we analyse UK dealer adverts for 6,897 BMW 3 Series cars across different ages and specifications. The asking price is now £1,000 lower than when we first recorded the advert 114 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at A1 Auto Solutions in Maidenhead. 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 £22,808.

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 114 days.

Price history

AskCar first saw this advert on 14 July 2026 at £24,995. Its asking price is now £23,995, £1,000 less. The latest price cut was seen on 24 October 2026.

Price changes recorded:

• 14 July 2026: £24,995
• 17 October 2026: £24,495
• 24 October 2026: £23,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 25 May 2027.

It has had 4 MOTs. The latest, on 14 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 34,176 miles, which matches the advertised 35,384 miles.

Advertised mileage is about 19,400 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: 35,503 miles. Price: £20,998, £2,997 less than this car. Dealer: Arnold Clark East Kilbride Vauxhall in East Kilbride. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-18c6c5d23ec4
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 34,884 miles. Price: £21,495, £2,500 less than this car. Dealer: Skinners Of Rye in Rye. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-6b14e1d20ad7
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, grey. Mileage: 34,704 miles. Price: £21,500, £2,495 less than this car. Dealer: Stoneacre in Rotherham. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-5e32cc5202b9

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, blue, 5 miles from this car. Mileage: 50,948 miles. Price: £23,000, £995 less than this car. Dealer: Sytner High Wycombe BMW in High Wycombe. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-4f09b36cb499