2021 BMW 4 Series 2.0 420i M Sport

Overview

• Make: BMW
• Model: 4 Series
• Trim: M Sport
• Version: 2.0 420i M Sport Auto RWD Euro 6 (s/s) 2dr (181 bhp)
• Year: 2021
• Mileage: 52,834 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 151 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 4 Series M Sport is advertised with 52,834 miles, approximately 8,700 above the typical mileage for its age. The AskCar estimate for this car is £22,709. It is priced at £22,995, which is £286 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 1,814 BMW 4 Series cars across different ages and specifications. This car was first seen in our listings data 33 days ago. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Eaglesham Garage in Glasgow. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £286 (1%) over the AskCar estimate of £22,709.

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 1,814 priced BMW 4 Series adverts across different ages and specifications, as of 4 November 2026.

A 2021 BMW 4 Series with the 2.0 petrol engine is typically advertised at £24,000: the median of the 144 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2021 BMW 4 Series has been on sale for at least 33 days.

Price history

AskCar first saw this advert on 2 October 2026 at £22,995. 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 4 November 2026: valid until 8 December 2026.

It has had 2 MOTs. The latest, on 9 December 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 41,683 miles, which matches the advertised 52,834 miles.

Advertised mileage is about 8,700 miles higher than the median mileage of a 2021 BMW 4 Series on AskCar.

Similar cars

45 other 2021 BMW 4 Series M Sport 2.0 petrol automatic coupes are for sale at UK dealers, from £17,490 to £27,975, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 4 Series M Sport, 2.0 petrol coupe, blue. Mileage: 52,743 miles. Price: £24,500, £1,505 more than this car. Dealer: John Clark MINI Tayside in Dundee. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-16d3ea65b65d
• 2021 BMW 4 Series M Sport, 2.0 petrol coupe, black. Mileage: 53,139 miles. Price: £22,200, £795 less than this car. Dealer: Carsa Southampton in Southampton. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-3a9b41c02d84
• 2021 BMW 4 Series M Sport, 2.0 petrol coupe, blue. Mileage: 51,644 miles. Price: £23,450, £455 more than this car. Dealer: Lloyd Newcastle BMW in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-9adf32c11a64

• The nearest: 2021 BMW 4 Series M Sport, 2.0 petrol coupe, white, 8 miles from this car. Mileage: 36,484 miles. Price: £22,949, the same price as this car. Dealer: Motorpoint Glasgow in Glasgow. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-0818ea1bca21