2020 BMW 4 Series

2.0 420i M Sport Auto 4WD Euro 6 2dr (Professional Media) (181 bhp)

£17,999

Fair price: within 8% of the typical £19,390 for this model, age and mileage, drawing on 1,749 adverts of this make and model.

Overview

Make
BMW
Model
4 Series
Trim
M SPORT
Version
2.0 420i M Sport Auto 4WD Euro 6 2dr (Professional Media) (181 bhp)
Mileage
36,373 miles
Year
2020
Fuel type
Petrol
Body type
Coupe
Engine
2.0 L
Gearbox
Automatic
Power
181 bhp
Seats
4
CO2
178 g/km
Colour
Silver
Doors
2
Driven wheels
Four Wheel Drive
Engine badge
420i
Emissions standard
Euro 6

About this car

This 2020 BMW 4 Series M Sport is advertised with 36,373 miles, approximately 7,400 below the typical mileage for its age. Its asking price of £17,999 is £1,391 below our estimate of £19,390. The estimate uses 1,749 UK dealer adverts for the BMW 4 Series, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 68 days ago, the asking price has dropped by £684. The time on sale and price change could be useful context when negotiating. Its MOT is recorded as valid until 11 August 2027. The advertised mileage is consistent with the latest MOT reading. You can find this car at cinch Corby in North Northamptonshire.

Stock data from 21 October 2026.

How we estimate prices and check cars

Price history

First seen on 15 August 2026, 68 days ago. Advert duration calculated on 22 October 2026. Net asking-price reduction: £684 from the first recorded £18,683. 2 price reductions recorded, the latest observed on 5 September 2026.

Recorded asking prices
Date observedAsking price
15 August 2026£18,683
21 August 2026£18,099
5 September 2026£17,999
21 October 2026£17,999

Price and mileage comparison

Estimated market asking price: £19,390. The asking price is £1,391 below this estimate.

The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.

The pricing calculation includes 1,749 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 7,400 miles lower than typical for a 2020 BMW 4 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 11 August 2027. 36,369 miles at the last test.

26 other cars with the same year, trim, gearbox and fuel are for sale from £15,560 to £53,950.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£15,56045,681 miles
£16,50019,927 miles
£17,49544,376 miles
£17,75048,681 miles
£18,45040,457 miles

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.

Browse all BMW 4 Series cars for sale · 2020 BMW 4 Series price guide

How to contact the dealer, its opening hours and the cheaper cars like this one are on this AskCar page.

Vehicle photos