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: 72,568 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 72,568 miles, around 17,700 more miles than is typical for its age. Its asking price of £16,495 is £247 above the AskCar estimate of £16,248. The AskCar estimate draws on 6,897 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. It first appeared in our advert records 10 days ago. Its advertised mileage matches the government's MOT record. The seller is Switch Car Group, based in Liverpool. 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: £247 (1%) over the AskCar estimate of £16,248.

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 10 days.

Price history

AskCar first saw this advert on 26 October 2026 at £16,495. 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 5 November 2026: valid until 11 December 2026.

It has had 2 MOTs. The latest, on 12 December 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 61,503 miles, which matches the advertised 72,568 miles.

Advertised mileage is about 17,700 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, blue. Mileage: 72,595 miles. Price: £17,350, £855 more than this car. Dealer: SKV Motors in Romford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-57a338fb67b5
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, grey. Mileage: 74,000 miles. Price: £18,940, £2,445 more than this car. Dealer: Dace Specialist Car Centre Manchester - Trading Standards Approved in Manchester. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-d54df563cee9
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 74,000 miles. Price: £19,495, £3,000 more than this car. Dealer: Empire Autos NI in Craigavon. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-073b6ec4040c

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black, 3 miles from this car. Mileage: 47,237 miles. Price: £20,498, £4,003 more than this car. Dealer: Arnold Clark Liverpool Motorstore / MG / Chery in Liverpool. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-4471e912266d