2020 BMW 4 Series

2.0 420i GPF M Sport Auto RWD Euro 6 (s/s) 2dr (181 bhp)

£16,500

Good value: £2,683 under the typical £19,183 for this model, age and mileage, drawing on 1,725 adverts of this make and model.

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)
Mileage
19,927 miles
Year
2020
Fuel type
Petrol
Body type
Coupe
Engine
2.0 L
Gearbox
Automatic
Power
181 bhp
Seats
4
CO2
139 g/km
Colour
Blue
Doors
2
Driven wheels
Rear Wheel Drive
Engine badge
420i
Emissions standard
Euro 6

About this car

The advertised mileage for this 2020 BMW 4 Series M Sport is 19,927 miles. Its asking price of £16,500 is £2,683 below our estimate of £19,183. Our estimate draws on 1,725 BMW 4 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 140 days ago, the asking price has dropped by £3,100. Ask the dealer why the advert shows fewer miles than the 20,578 recorded at the latest MOT. MOT records show an expiry date of 9 June 2027. It is for sale at Car Planet Barnet in New Southgate.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 7 June 2026, 140 days ago. Advert duration calculated on 25 October 2026. Net asking-price reduction: £3,100 from the first recorded £19,600. 16 price reductions recorded, the latest observed on 21 October 2026.

Recorded asking prices
Date observedAsking price
7 June 2026£19,600
22 June 2026£19,550
29 June 2026£19,600
6 July 2026£19,350
7 July 2026£19,350
13 July 2026£19,100
20 July 2026£18,900
21 July 2026£18,900
27 July 2026£18,800
28 July 2026£18,800
3 August 2026£18,650
10 August 2026£18,550
11 August 2026£18,550
19 August 2026£18,500
2 September 2026£18,550
8 September 2026£18,450
15 September 2026£18,300
22 September 2026£18,000
28 September 2026£17,700
4 October 2026£17,400
9 October 2026£17,100
16 October 2026£16,800
21 October 2026£16,500
23 October 2026£16,500

Price and mileage comparison

Estimated market asking price: £19,183. The asking price is £2,683 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 1,725 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 24,000 miles lower than typical for a 2020 BMW 4 Series.

Mileage concern: the advertised mileage is below the last MOT reading; ask the dealer to explain.

MOT

MOT valid until 9 June 2027. 20,578 miles at the last test.

23 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
£17,49544,376 miles
£17,75048,681 miles
£17,99836,373 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

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