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: 51,700 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

With 51,700 miles on the clock, this 2021 BMW 3 Series M Sport has done roughly 3,100 fewer miles than a typical 2021 BMW 3 Series. Its asking price of £19,990 is £159 above the AskCar estimate of £19,831. The AskCar estimate draws on 6,897 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 40 days ago. Its asking price has since fallen by £500. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is S James Prestige, based in Stamford. 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: £159 (under 1%) over the AskCar estimate of £19,831.

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 40 days.

Price history

AskCar first saw this advert on 26 September 2026 at £20,490. Its asking price is now £19,990, £500 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 26 September 2026: £20,490
• 29 October 2026: £19,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 22 June 2027.

It has had 4 MOTs. The latest, on 18 June 2026, passed.

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

Mileage at that test: 50,042 miles, which matches the advertised 51,700 miles.

Advertised mileage is about 3,100 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, black. Mileage: 51,678 miles. Price: £19,990, the same price as this car. Dealer: Prestige Cars Of Essex in Harlow. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-d6c46f7e87be
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, blue. Mileage: 51,581 miles. Price: £18,325, £1,665 less than this car. Dealer: Grange. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-5712d3a146bb
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black. Mileage: 51,848 miles. Price: £21,500, £1,510 more than this car. Dealer: Sytner Leicester BMW in Leicester. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-f42cdc6218b7

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white, under a mile from this car. Mileage: 34,300 miles. Price: £21,250, £1,260 more than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-05fc549b938f