2020 BMW 4 Series 2.0 420i M Sport

Overview

• Make: BMW
• Model: 4 Series
• Trim: M Sport
• Version: 2.0 420i M Sport [Tech/Pro Pack] Auto RWD Euro 6 2dr Step (181 bhp)
• Year: 2020
• Mileage: 39,182 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

At 39,182 miles, this 2020 BMW 4 Series M Sport has covered about 3,900 fewer miles than other 2020 BMW 4 Series cars. The dealer is asking £23,805, which is £2,102 above the AskCar estimate of £21,703. To work out the AskCar estimate, we analyse UK dealer adverts for 1,833 BMW 4 Series cars across different ages and specifications. Since we first spotted the advert 48 days ago, the asking price has dropped by £194. Our latest MOT record expired on 25 October 2026. Check the current position with the dealer. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Lookers Car Hub Middlesbrough, based in Middlesbrough. 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

Above the going rate: £2,102 (9%) over the AskCar estimate of £21,703.

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 2020 BMW 4 Series with the 2.0 petrol engine is typically advertised at £19,400: the median of the 38 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2020 BMW 4 Series has been on sale for at least 48 days.

Price history

AskCar first saw this advert on 18 September 2026 at £23,999. Its asking price is now £23,805, £194 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 18 September 2026: £23,999
• 22 September 2026: £23,899
• 29 September 2026: £23,999
• 1 October 2026: £23,714
• 2 October 2026: £23,717
• 9 October 2026: £23,713
• 14 October 2026: £23,733
• 17 October 2026: £23,639
• 20 October 2026: £23,299
• 21 October 2026: £23,303
• 24 October 2026: £23,300
• 27 October 2026: £22,959
• 28 October 2026: £22,899
• 3 November 2026: £23,761
• 4 November 2026: £23,805

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: the latest record we hold ran out on 25 October 2026; ask the dealer for the current MOT.

It has had 3 MOTs. The latest, on 10 October 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 30,418 miles, which matches the advertised 39,182 miles.

Advertised mileage is about 3,900 miles lower than the median mileage of a 2020 BMW 4 Series on AskCar.

Similar cars

15 other 2020 BMW 4 Series M Sport 2.0 petrol automatic coupes are for sale at UK dealers, from £14,790 to £53,950, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 4 Series M Sport, 2.0 petrol coupe, black. Mileage: 36,608 miles. Price: £17,995, £5,810 less than this car. Dealer: SKV Motors in Romford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-4fd7204f8aed
• 2020 BMW 4 Series M Sport, 2.0 petrol coupe, grey. Mileage: 36,589 miles. Price: £19,995, £3,810 less than this car. Dealer: Group 1 Farnborough BMW in Farnborough. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-61b99f000204
• 2020 BMW 4 Series M Sport, 2.0 petrol coupe, silver. Mileage: 36,373 miles. Price: £17,999, £5,806 less than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-873241c52bd2

• The nearest: 2020 BMW 4 Series M Sport, 2.0 petrol coupe, white, 60 miles from this car. Mileage: 14,941 miles. Price: £22,510, £1,295 less than this car. Dealer: Big Motoring World Leeds in Leeds. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-71c62883e20a