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: 28,025 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 144 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 28,025 miles on the clock, this 2021 BMW 4 Series M Sport has done roughly 15,300 fewer miles than a typical 2021 BMW 4 Series. Its asking price of £23,099 is £2,597 below the AskCar estimate of £25,696. The AskCar estimate uses 1,787 UK dealer adverts for the BMW 4 Series, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 52 days ago, and its asking price has since fallen by £1,550. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Motorpoint Oldbury, based in Oldbury. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Good value: £2,597 (10%) under the AskCar estimate of £25,696.

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 1,787 priced BMW 4 Series adverts across different ages and specifications, as of 2 November 2026.

A 2021 BMW 4 Series with the 2.0 petrol engine is typically advertised at £23,900: the median of the 141 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2021 BMW 4 Series has been on sale for at least 52 days.

Price history

AskCar first saw this advert on 11 September 2026 at £24,649. Its asking price is now £23,099, £1,550 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

• 11 September 2026: £24,649
• 15 September 2026: £23,699
• 22 September 2026: £23,599
• 30 September 2026: £23,349
• 1 October 2026: £23,399
• 6 October 2026: £23,599
• 13 October 2026: £23,349
• 23 October 2026: £23,299
• 30 October 2026: £23,099

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 29 June 2027.

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

There were no advisories at the latest test.

Mileage at that test: 26,006 miles, which matches the advertised 28,025 miles.

Advertised mileage is about 15,300 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 2 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 4 Series M Sport, 2.0 petrol coupe, blue. Mileage: 28,622 miles. Price: £24,975, £1,876 more than this car. Dealer: Williams Bmw Manchester in Manchester. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-60506fe19a03
• 2021 BMW 4 Series M Sport, 2.0 petrol coupe, blue. Mileage: 27,204 miles. Price: £24,995, £1,896 more than this car. Dealer: Norman Motors (Poole) in Poole. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-62d150e19e37
• 2021 BMW 4 Series M Sport, 2.0 petrol coupe, blue. Mileage: 29,199 miles. Price: £23,249, £150 more than this car. Dealer: Motorpoint Chingford in Chingford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-c727067e39f2

• The nearest: 2021 BMW 4 Series M Sport, 2.0 petrol coupe, black, 31 miles from this car. Mileage: 34,384 miles. Price: £22,270, £829 less than this car. Dealer: Hilton Garage in Derby. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-3150eeefb5f4