2021 BMW 4 Series 2.0 420i M Sport

Overview

• Make: BMW
• Model: 4 Series
• Trim: M Sport
• Version: 2.0 420i M Sport [Pro Pack] Auto RWD Euro 6 2dr Step (181 bhp)
• Year: 2021
• Mileage: 22,884 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 144 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 4 Series M Sport has covered 22,884 miles, around 21,200 fewer miles than is typical for its age. The AskCar estimate for this car is £26,481. It is priced at £24,549, which is £1,932 below that estimate. The AskCar estimate draws on 1,814 BMW 4 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 13 days ago, the asking price has dropped by £1,950. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Motorpoint Norwich, based in Norwich. 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: £1,932 (7%) under the AskCar estimate of £26,481.

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 13 days.

Price history

AskCar first saw this advert on 22 October 2026 at £26,499. Its asking price is now £24,549, £1,950 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 22 October 2026: £26,499
• 27 October 2026: £25,499
• 3 November 2026: £24,549

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 20 January 2027.

It has had 3 MOTs. The latest, on 19 January 2026, passed.

Advisories at the latest test: nearside rear tyre slightly damaged/cracking or perishing damage on outer sidewall.

Mileage at that test: 15,540 miles, which matches the advertised 22,884 miles.

Advertised mileage is about 21,200 miles lower 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: 23,110 miles. Price: £24,995, £446 more than this car. Dealer: Agnew Group Bavarian BMW in Belfast. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-416e680d89ac
• 2021 BMW 4 Series M Sport, 2.0 petrol coupe, black. Mileage: 23,603 miles. Price: £27,000, £2,451 more than this car. Dealer: Prestige Cars Of Essex in Harlow. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-fee384f694d2
• 2021 BMW 4 Series M Sport, 2.0 petrol coupe, blue. Mileage: 24,024 miles. Price: £26,750, £2,201 more than this car. Dealer: Stratstone Select Bracknell in Bracknell. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-3e746f50e110

• The nearest: 2021 BMW 4 Series M Sport, 2.0 petrol coupe, red, 72 miles from this car. Mileage: 37,000 miles. Price: £25,850, £1,301 more than this car. Dealer: A & S Cars in Bishop's Stortford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-eb34f1d39444