2020 BMW 4 Series 2.0 420i M Sport

Overview

• Make: BMW
• Model: 4 Series
• Trim: M Sport
• Version: 2.0 420i GPF M Sport Auto 4WD Euro 6 (s/s) 2dr (181 bhp)
• Year: 2020
• Mileage: 48,681 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 151 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 48,681 miles on the clock, this 2020 BMW 4 Series M Sport has done roughly 5,600 more miles than a typical 2020 BMW 4 Series. The dealer is asking £17,750, which is £1,221 below the AskCar estimate of £18,971. To work out the AskCar estimate, we analyse UK dealer adverts for 1,826 BMW 4 Series cars across different ages and specifications. We first recorded this car for sale 22 days ago. Its advertised mileage matches the government's MOT record. It is for sale at Hilton Garage in Derby. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,221 (6%) under the AskCar estimate of £18,971.

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 1,826 priced BMW 4 Series adverts across different ages and specifications, as of 6 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 6 November 2026.

Time on sale

This 2020 BMW 4 Series has been on sale for at least 22 days.

Price history

AskCar first saw this advert on 15 October 2026 at £17,750. 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 6 November 2026: valid until 24 March 2027.

It has had 4 MOTs. The latest, on 16 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 44,474 miles, which matches the advertised 48,681 miles.

Advertised mileage is about 5,600 miles higher than the median mileage of a 2020 BMW 4 Series on AskCar.

Similar cars

14 other 2020 BMW 4 Series M Sport 2.0 petrol automatic coupes are for sale at UK dealers, from £15,450 to £53,950, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 4 Series M Sport, 2.0 petrol coupe, white. Mileage: 43,767 miles. Price: £23,495, £5,745 more than this car. Dealer: Motor Range Manchester in Manchester. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-a53aaf419522
• 2020 BMW 4 Series M Sport, 2.0 petrol coupe, black. Mileage: 56,510 miles. Price: £15,450, £2,300 less than this car. Dealer: Perfect Car Company in Shrewsbury. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-e8532209a7e3
• 2020 BMW 4 Series M Sport, 2.0 petrol coupe, blue. Mileage: 39,182 miles. Price: £23,805, £6,055 more than this car. Dealer: Lookers Car Hub Middlesbrough in Middlesbrough. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-91e765065fc2

• The nearest: 2020 BMW 4 Series M Sport, 2.0 petrol coupe, blue, 26 miles from this car. Mileage: 70,800 miles. Price: £20,495, £2,745 more than this car. Dealer: Motorhouse Plumtree in Nottingham. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-4fd2b48ceaf2