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 RWD Euro 6 (s/s) 2dr (181 bhp)
• Year: 2020
• Mileage: 63,000 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 139 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW 4 Series M Sport is advertised with 63,000 miles on the clock. The AskCar estimate for this car is £14,984. It is priced at £14,790, which is £194 below that estimate. The AskCar estimate uses UK dealer asking prices, including 1,833 BMW 4 Series adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert for 7 days. The advertised mileage is lower than the latest MOT reading of 63,991 miles. Ask the dealer to explain. Its MOT is recorded as valid until 8 August 2027. It is for sale at Dawn Motors in Canterbury. 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: £194 (1%) under the AskCar estimate of £14,984.

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 7 days.

Price history

AskCar first saw this advert on 29 October 2026 at £14,790. 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 8 August 2027.

It failed its MOT on 27 July 2026 (offside front lower suspension arm ball joint excessively worn) and passed 2 days later, on 29 July 2026.

Advisories at the latest test: exhaust noisy.

Mileage at that test: 63,991 miles. The advert says 63,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 19,900 miles higher 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 £15,450 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: 65,356 miles. Price: £19,999, £5,209 more than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-e21ef46b82c9
• 2020 BMW 4 Series M Sport, 2.0 petrol coupe, black. Mileage: 56,510 miles. Price: £15,450, £660 more 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: 70,800 miles. Price: £20,495, £5,705 more than this car. Dealer: Motorhouse Plumtree in Nottingham. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-4fd2b48ceaf2

• The nearest: 2020 BMW 4 Series M Sport, 2.0 petrol coupe, blue, under a mile from this car. Mileage: 35,639 miles. Price: £24,495, £9,705 more than this car. Dealer: MINI UK at Barretts Canterbury in Canterbury. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-d5ad166b2bb0