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: 110,887 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 154 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 has covered 110,887 miles. The dealer is asking £14,000, which is £1,956 above the AskCar estimate of £12,044. To work out the AskCar estimate, we analyse UK dealer adverts for 6,886 BMW 3 Series cars across different ages and specifications. This car was first seen in our listings data 163 days ago. The advertised mileage is lower than the latest MOT reading of 115,534 miles. Ask the dealer to explain. MOT records show an expiry date of 7 May 2027. It is for sale at Seaton Car Sales in Hartlepool. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £1,956 (16%) over the AskCar estimate of £12,044.

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 7 November 2026.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 163 days.

Price history

AskCar first saw this advert on 28 May 2026 at £14,000. 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 7 November 2026: valid until 7 May 2027.

It has had 4 MOTs. The latest, on 8 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 115,534 miles. The advert says 110,887 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 55,700 miles higher than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

142 other 2021 BMW 3 Series M Sport 2.0 petrol automatic saloons are for sale at UK dealers, from £13,750 to £25,975, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 93,863 miles. Price: £13,750, £250 less than this car. Dealer: Junction Autopark - Winsford in Winsford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-645c5bc96690
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black. Mileage: 91,000 miles. Price: £15,500, £1,500 more than this car. Dealer: Invicta Omoda Jaecoo Preston in Preston. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-e3b0a3be7c88
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 91,000 miles. Price: £15,995, £1,995 more than this car. Dealer: Rev It Up UK in Denbigh. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-23e0ecbe6d15

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, blue, 29 miles from this car. Mileage: 26,054 miles. Price: £22,450, £8,450 more than this car. Dealer: AJC Car Sales in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-a5fedee7641f