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: 20,400 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

At 20,400 miles, this 2021 BMW 3 Series M Sport has covered about 34,400 fewer miles than other 2021 BMW 3 Series cars. The AskCar estimate for this car is £23,654. It is priced at £23,990, which is £336 above that estimate. The AskCar estimate uses 6,897 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this car for sale 161 days ago. The government's MOT record matches its advertised mileage. It is for sale at Colin Bryan T/A CB Autosales in Kirkcaldy. 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: £336 (1%) over the AskCar estimate of £23,654.

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 161 days.

Price history

AskCar first saw this advert on 28 May 2026 at £23,990. 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 5 November 2026: valid until 24 November 2026.

It has had 3 MOTs. The latest, on 25 November 2025, passed.

Advisories at the latest test: offside front tyre slightly damaged/cracking or perishing; offside front tyre wearing outer edge; nearside rear tyre worn close to legal limit/worn on edge worn inner edge; and 2 more.

Mileage at that test: 20,396 miles, which matches the advertised 20,400 miles.

Advertised mileage is about 34,400 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, grey. Mileage: 20,565 miles. Price: £22,000, £1,990 less than this car. Dealer: Sytner Cardiff BMW in Cardiff. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-30a32cfa2a20
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black. Mileage: 19,786 miles. Price: £24,000, the same price as this car. Dealer: Sytner High Wycombe BMW in High Wycombe. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-5a3c70a28591
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, grey. Mileage: 22,600 miles. Price: £25,490, £1,500 more than this car. Dealer: Prestige Cars Of Essex in Harlow. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-ceeafb001830

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, grey, 10 miles from this car. Mileage: 87,011 miles. Price: £16,998, £6,992 less than this car. Dealer: Arnold Clark Edinburgh Seafield Motorstore / Vanstore in Edinburgh. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-85f4dcb1429a