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: 44,433 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

The advertised mileage for this 2021 BMW 4 Series M Sport is 44,433 miles. Its asking price of £25,000 is £1,206 above the AskCar estimate of £23,794. To work out the AskCar estimate, we analyse UK dealer adverts for 1,814 BMW 4 Series cars across different ages and specifications. We first recorded this car for sale 1 day ago. The government's MOT record matches its advertised mileage. It is for sale at John Clark BMW Tayside in Dundee. 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: £1,206 (5%) over the AskCar estimate of £23,794.

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

AskCar first saw this 2021 BMW 4 Series advertised 1 day ago. About 4 in 10 of 2021 BMW 4 Series cars are gone from sale within a month of being advertised: 103 of the 239 first advertised between 11 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 3 November 2026 at £25,000. 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 4 November 2026: valid until 9 February 2027.

It has had 3 MOTs. The latest, on 5 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 38,001 miles, which matches the advertised 44,433 miles.

Advertised mileage is about 300 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, black. Mileage: 44,827 miles. Price: £23,000, £2,000 less than this car. Dealer: Colin Ludwell Cars in Bristol. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-31c98146fd08
• 2021 BMW 4 Series M Sport, 2.0 petrol coupe, white. Mileage: 45,100 miles. Price: £22,990, £2,010 less than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-9b2f000e5574
• 2021 BMW 4 Series M Sport, 2.0 petrol coupe, blue. Mileage: 42,300 miles. Price: £23,490, £1,510 less than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-2049ec2a15d6

• The nearest: 2021 BMW 4 Series M Sport, 2.0 petrol coupe, blue, under a mile from this car. Mileage: 52,743 miles. Price: £24,500, £500 less than this car. Dealer: John Clark MINI Tayside in Dundee. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-16d3ea65b65d