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 RWD Euro 6 (s/s) 2dr (181 bhp)
• Year: 2020
• Mileage: 35,639 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 151 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW 4 Series M Sport is advertised with 35,639 miles, approximately 6,800 below the typical mileage for its age. The AskCar estimate for this car is £21,378. It is priced at £24,495, which is £3,117 above that estimate. The AskCar estimate uses UK dealer asking prices, including 1,775 BMW 4 Series adverts, and accounts for the car’s age, mileage and specification. This car was first seen in our listings data today. Its advertised mileage matches the government's MOT record. The seller is MINI UK at Barretts Canterbury, based in Canterbury. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 1 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £3,117 (14%) over the AskCar estimate of £21,378.

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 1,775 priced BMW 4 Series adverts across different ages and specifications, as of 1 November 2026.

Time on sale

AskCar first saw this 2020 BMW 4 Series advertised today.

Price history

AskCar first saw this advert on 1 November 2026 at £24,495. 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 1 November 2026: valid until 20 October 2027.

It has had 5 MOTs. The latest, on 2 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 34,792 miles, which matches the advertised 35,639 miles.

Advertised mileage is about 6,800 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 1 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 4 Series M Sport, 2.0 petrol coupe, silver. Mileage: 36,373 miles. Price: £17,999, £6,496 less than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-873241c52bd2
• 2020 BMW 4 Series M Sport, 2.0 petrol coupe, grey. Mileage: 36,589 miles. Price: £20,995, £3,500 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, black. Mileage: 36,608 miles. Price: £18,260, £6,235 less than this car. Dealer: SKV Motors in Romford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-4fd7204f8aed

• The nearest: 2020 BMW 4 Series M Sport, 2.0 petrol coupe, blue, under a mile from this car. Mileage: 63,000 miles. Price: £14,790, £9,705 less than this car. Dealer: Dawn Motors in Canterbury. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-bb099ef14ad0