2020 BMW 4 Series 2.0 420i M Sport

Overview

• Make: BMW
• Model: 4 Series
• Trim: M Sport
• Version: 2.0 420i M Sport Auto 4WD Euro 6 2dr (Professional Media) (181 bhp)
• Year: 2020
• Mileage: 20,668 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: White
• CO2: 178 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW 4 Series M Sport has covered 20,668 miles, around 22,400 fewer miles than is typical for its age. The dealer is asking £19,495, which is £1,478 below the AskCar estimate of £20,973. To work out the AskCar estimate, we analyse UK dealer adverts for 1,833 BMW 4 Series cars across different ages and specifications. It first appeared in our advert records 31 days ago. Its advertised mileage matches the government's MOT record. The seller is Park's Motor Group Park's Arbroath, based in Angus. 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: £1,478 (7%) under the AskCar estimate of £20,973.

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 31 days.

Price history

AskCar first saw this advert on 5 October 2026 at £19,495. 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 27 February 2027.

It has had 4 MOTs. The latest, on 11 February 2026, passed.

Advisories at the latest test: nearside front tyre worn close to legal limit/worn on edge outer edge; offside front tyre worn close to legal limit/worn on edge outer edge.

Mileage at that test: 18,400 miles, which matches the advertised 20,668 miles.

Advertised mileage is about 22,400 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, blue. Mileage: 19,927 miles. Price: £16,350, £3,145 less than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-74ef8c894940
• 2020 BMW 4 Series M Sport, 2.0 petrol coupe, white. Mileage: 14,941 miles. Price: £22,510, £3,015 more than this car. Dealer: Big Motoring World Leeds in Leeds. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-71c62883e20a
• 2020 BMW 4 Series M Sport, 2.0 petrol coupe, grey. Mileage: 28,023 miles. Price: £20,010, £515 more than this car. Dealer: Big Motoring World Camberley in Camberley. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-5eba3fdb40a8

• The nearest: 2020 BMW 4 Series M Sport, 2.0 petrol coupe, blue, 148 miles from this car. Mileage: 39,182 miles. Price: £23,805, £4,310 more than this car. Dealer: Lookers Car Hub Middlesbrough in Middlesbrough. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-91e765065fc2