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: 41,881 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 146 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 41,881 miles on the clock, this 2021 BMW 3 Series M Sport has done roughly 13,300 fewer miles than a typical 2021 BMW 3 Series. The dealer is asking £22,498, which is £1,428 above the AskCar estimate of £21,070. To work out the AskCar estimate, we analyse UK dealer adverts for 6,902 BMW 3 Series cars across different ages and specifications. We first recorded this car for sale 1 day ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Arnold Clark Mercedes-Benz of Grangemouth, based in Grangemouth. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,428 (6%) over the AskCar estimate of £21,070.

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 6,902 priced BMW 3 Series adverts across different ages and specifications, as of 6 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: 433 of the 918 first advertised between 10 July 2026 and 3 October 2026.

Price history

AskCar first saw this advert on 5 November 2026 at £22,498. 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 6 November 2026: valid until 2 November 2027.

It has had 4 MOTs. The latest, on 3 November 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 41,887 miles, which matches the advertised 41,881 miles.

Advertised mileage is about 13,300 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

143 other 2021 BMW 3 Series M Sport 2.0 petrol automatic saloons are for sale at UK dealers, from £14,000 to £25,975, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 41,850 miles. Price: £18,700, £3,798 less than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-f54c98a5d58d
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black. Mileage: 42,440 miles. Price: £21,000, £1,498 less than this car. Dealer: Sytner Harold Wood BMW in Harold Wood. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-8b1b2b00655d
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, grey. Mileage: 42,445 miles. Price: £23,499, £1,001 more than this car. Dealer: Albans Motors in Hatfield. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-3ff59c7cd785

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black, 10 miles from this car. Mileage: 57,094 miles. Price: £18,899, £3,599 less than this car. Dealer: Eastern Western Motor Group Car Deal Warehouse Stirling in Stirling. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-2b6d4f121f3f