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 2dr Step (181 bhp)
• Year: 2021
• Mileage: 32,969 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 144 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 32,969 miles on the clock, this 2021 BMW 4 Series M Sport has done roughly 11,100 fewer miles than a typical 2021 BMW 4 Series. The AskCar estimate for this car is £24,864. It is priced at £22,998, which is £1,866 below that estimate. The AskCar estimate draws on 1,826 BMW 4 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale today. Its advertised mileage matches the government's MOT record. You can find this car at CarSupermarket.com Sutton Fields Recon Centre in East Riding of Yorkshire. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,866 (7%) under the AskCar estimate of £24,864.

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 1,826 priced BMW 4 Series adverts across different ages and specifications, as of 6 November 2026.

A 2021 BMW 4 Series with the 2.0 petrol engine is typically advertised at £23,800: the median of the 148 for sale on AskCar, as of 6 November 2026.

Time on sale

AskCar first saw this 2021 BMW 4 Series advertised today. About 4 in 10 of 2021 BMW 4 Series cars are gone from sale within a month of being advertised: 108 of the 256 first advertised between 11 July 2026 and 3 October 2026.

Price history

AskCar first saw this advert on 6 November 2026 at £22,998. 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 6 November 2026: valid until 22 September 2027.

It has had 4 MOTs. The latest, on 22 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 30,064 miles, which matches the advertised 32,969 miles.

Advertised mileage is about 11,100 miles lower than the median mileage of a 2021 BMW 4 Series on AskCar.

Similar cars

47 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 6 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 4 Series M Sport, 2.0 petrol coupe, black. Mileage: 34,384 miles. Price: £22,270, £728 less than this car. Dealer: Hilton Garage in Derby. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-3150eeefb5f4
• 2021 BMW 4 Series M Sport, 2.0 petrol coupe, white. Mileage: 31,200 miles. Price: £21,995, £1,003 less than this car. Dealer: Raymond Smith Garages in Bedford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-9a15d24cf92f
• 2021 BMW 4 Series M Sport, 2.0 petrol coupe, white. Mileage: 29,969 miles. Price: £25,498, £2,500 more than this car. Dealer: Arnold Clark Inverness Volvo in Inverness. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-44e51c9d4c4e

• The nearest: 2021 BMW 4 Series M Sport, 2.0 petrol coupe, blue, 47 miles from this car. Mileage: 40,447 miles. Price: £24,699, £1,701 more than this car. Dealer: Stratstone Bmw Leeds in Leeds. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-c8514b5e6e89