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: 36,836 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 146 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport is advertised with 36,836 miles, approximately 17,300 below the typical mileage for its age. Its asking price of £21,095 is £417 below the AskCar estimate of £21,512. The AskCar estimate draws on 6,886 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 7 days ago. Its asking price has since fallen by £200. The government's MOT record matches its advertised mileage. It is for sale at Motor Trust Haslingden in Rossendale. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 14 November 2026.

How we estimate prices and check cars

Price

Fair price: £417 (1%) under the AskCar estimate of £21,512.

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 6,886 priced BMW 3 Series adverts across different ages and specifications, as of 14 November 2026.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 7 days.

Price history

AskCar first saw this advert on 7 November 2026 at £21,295. Its asking price is now £21,095, £200 less. The latest price cut was seen on 13 November 2026.

Price changes recorded:

• 7 November 2026: £21,295
• 13 November 2026: £21,095

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 14 November 2026: valid until 26 September 2027.

It failed its MOT on 14 September 2026 (nearside front windscreen wiper blade defective; offside front windscreen wiper blade defective; nearside front suspension arm ball joint dust cover no longer prevents the ingress of dirt rear lower arm) and passed 1 day later, on 15 September 2026.

Advisories at the latest test: nearside front windscreen wiper blade defective; offside front windscreen wiper blade defective; rear brake pad(s) wearing thin 2mm.

Mileage at that test: 36,297 miles, which matches the advertised 36,836 miles.

Advertised mileage is about 17,300 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

149 other 2021 BMW 3 Series M Sport 2.0 petrol automatic saloons are for sale at UK dealers, from £13,750 to £27,298, as of 14 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, grey. Mileage: 37,000 miles. Price: £24,490, £3,395 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, white. Mileage: 36,500 miles. Price: £21,490, £395 more than this car. Dealer: Oakley Prestige in Newbury. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-42d9f16dcbb0
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black. Mileage: 37,248 miles. Price: £21,950, £855 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, black, under a mile from this car. Mileage: 18,624 miles. Price: £22,885, £1,790 more than this car. Dealer: Motor Trust Haslingden in Haslingden. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-59cc21c9b4b8