2021 BMW 3 Series 2.0 318i M Sport

Overview

• Make: BMW
• Model: 3 Series
• Trim: M Sport
• Version: 2.0 318i M Sport Auto RWD Euro 6 (s/s) 4dr (154 bhp)
• Year: 2021
• Mileage: 23,100 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 154 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 146 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport has covered 23,100 miles, around 31,600 fewer miles than is typical for its age. Its asking price of £21,495 is £386 below the AskCar estimate of £21,881. To work out the AskCar estimate, we analyse UK dealer adverts for 6,864 BMW 3 Series cars across different ages and specifications. This car was first seen in our listings data 1 day ago. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at Next Drive Motorz in Oldham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 10 November 2026.

How we estimate prices and check cars

Price

Fair price: £386 (1%) under the AskCar estimate of £21,881.

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 6,864 priced BMW 3 Series adverts across different ages and specifications, as of 10 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: 455 of the 963 first advertised between 10 July 2026 and 7 October 2026.

Price history

AskCar first saw this advert on 9 November 2026 at £21,495. 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 10 November 2026: valid until 25 July 2027.

It has had 3 MOTs. The latest, on 26 July 2026, passed.

Advisories at the latest test: rear brake disc worn, pitted or scored, but not seriously weakened both sides.

Mileage at that test: 21,637 miles, which matches the advertised 23,100 miles.

Advertised mileage is about 31,600 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 £13,750 to £27,698, as of 10 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 22,891 miles. Price: £23,352, £1,857 more than this car. Dealer: Halliwell Jones Warrington BMW in Warrington. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-72595b264e0a
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, blue. Mileage: 23,585 miles. Price: £23,899, £2,404 more than this car. Dealer: Lookers BMW Stoke-On-Trent in Stoke-on-Trent. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-917a21bb93b7
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, grey. Mileage: 22,600 miles. Price: £25,490, £3,995 more than this car. Dealer: Prestige Cars Of Essex in Harlow. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-ceeafb001830