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: 87,011 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 154 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 146 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 87,011 miles on the clock, this 2021 BMW 3 Series M Sport has done roughly 32,200 more miles than a typical 2021 BMW 3 Series. Its asking price of £16,998 is £2,463 above the AskCar estimate of £14,535. The AskCar estimate uses UK dealer asking prices, including 6,897 BMW 3 Series adverts, and accounts for the car’s age, mileage and specification. It first appeared in our advert records 56 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Arnold Clark Edinburgh Seafield Motorstore / Vanstore, based in Edinburgh. 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

Above the going rate: £2,463 (16%) over the AskCar estimate of £14,535.

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 56 days.

Price history

AskCar first saw this advert on 10 September 2026 at £16,998. 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 2 July 2027.

It failed its MOT on 2 July 2026 (rear brake pad(s) less than 1.5 mm thick) and passed 1 day later, on 3 July 2026.

There were no advisories at the latest test.

Mileage at that test: 85,223 miles, which matches the advertised 87,011 miles.

Advertised mileage is about 32,200 miles higher 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: 87,565 miles. Price: £14,995, £2,003 less than this car. Dealer: Cardiff Trade Sales in Cardiff. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-702837a69868
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 88,796 miles. Price: £14,335, £2,663 less than this car. Dealer: Carbase Lympsham in Lympsham. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-7990e9d432ea
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black. Mileage: 85,150 miles. Price: £16,490, £508 less than this car. Dealer: Xenon Automotive in Welwyn Garden City. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-c3531bb5023b

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, grey, 10 miles from this car. Mileage: 20,400 miles. Price: £23,990, £6,992 more than this car. Dealer: Colin Bryan T/A CB Autosales in Kirkcaldy. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-3dd19b655cf3