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: 50,000 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 151 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 50,000 miles, this 2021 BMW 4 Series M Sport has covered about 5,900 more miles than other 2021 BMW 4 Series cars. The AskCar estimate for this car is £22,992. It is priced at £24,490, which is £1,498 above that estimate. The AskCar estimate draws on 1,833 BMW 4 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert for 14 days. Its advertised mileage matches the government's MOT record. It is advertised by Prestige Cars Of Essex in Epping Forest. 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: £1,498 (6%) over the AskCar estimate of £22,992.

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 1,833 priced BMW 4 Series adverts across different ages and specifications, as of 5 November 2026.

A 2021 BMW 4 Series with the 2.0 petrol engine is typically advertised at £24,000: the median of the 149 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2021 BMW 4 Series has been on sale for at least 14 days.

Price history

AskCar first saw this advert on 22 October 2026 at £24,490. 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 31 October 2027.

It has had 3 MOTs. The latest, on 12 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 49,999 miles, which matches the advertised 50,000 miles.

Advertised mileage is about 5,900 miles higher than the median mileage of a 2021 BMW 4 Series on AskCar.

Similar cars

48 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 5 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 4 Series M Sport, 2.0 petrol coupe, white. Mileage: 50,000 miles. Price: £21,260, £3,230 less than this car. Dealer: Hippo Approved in Blackburn. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-70926018b5c3
• 2021 BMW 4 Series M Sport, 2.0 petrol coupe, black. Mileage: 49,604 miles. Price: £24,490, the same price as this car. Dealer: Halliwell Jones Warrington BMW in Warrington. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-69241d98b411
• 2021 BMW 4 Series M Sport, 2.0 petrol coupe, white. Mileage: 49,551 miles. Price: £20,990, £3,500 less than this car. Dealer: Avanti Motors in Darlington. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-0bab330089b7

• The nearest: 2021 BMW 4 Series M Sport, 2.0 petrol coupe, red, 8 miles from this car. Mileage: 37,000 miles. Price: £25,850, £1,360 more than this car. Dealer: A & S Cars in Bishop's Stortford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-eb34f1d39444