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: 36,500 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

At 36,500 miles, this 2021 BMW 3 Series M Sport has covered about 18,300 fewer miles than other 2021 BMW 3 Series cars. Priced at £21,890, it is advertised £179 above the AskCar estimate of £21,711. The AskCar estimate draws on 6,897 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 128 days ago, the asking price has dropped by £1,100. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at Oakley Prestige in Newbury. 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: £179 (under 1%) over the AskCar estimate of £21,711.

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 128 days.

Price history

AskCar first saw this advert on 30 June 2026 at £22,990. Its asking price is now £21,890, £1,100 less. The latest price cut was seen on 23 October 2026.

Price changes recorded:

• 1 July 2026: £22,990
• 29 August 2026: £22,490
• 5 September 2026: £21,990
• 13 October 2026: £22,390
• 23 October 2026: £21,890

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 28 April 2027.

It has had 3 MOTs. The latest, on 10 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 35,324 miles, which matches the advertised 36,500 miles.

Advertised mileage is about 18,300 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, white. Mileage: 36,073 miles. Price: £18,299, £3,591 less than this car. Dealer: Motorpoint Manchester in Manchester. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-c0d2eb226abf
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, grey. Mileage: 37,000 miles. Price: £24,490, £2,600 more than this car. Dealer: Stratus in Basingstoke. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-a12f565f6904
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black. Mileage: 37,248 miles. Price: £21,950, £60 more than this car. Dealer: M B Cars London in St Albans. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-d165e6eb854a

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white, 13 miles from this car. Mileage: 33,352 miles. Price: £23,499, £1,609 more than this car. Dealer: Dick Lovett BMW Hungerford in Hungerford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-571d0052193d