2020 BMW 4 Series

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

£18,450

Fair price: within 8% of the typical £18,135 for this model, age and mileage, drawing on 1,763 adverts of this make and model.

Overview

Make
BMW
Model
4 Series
Trim
M SPORT
Version
2.0 420i M Sport Auto RWD Euro 6 2dr (Professional Media) (181 bhp)
Mileage
40,457 miles
Year
2020
Fuel type
Petrol
Engine
2.0 L
Gearbox
Automatic
Power
181 bhp
Seats
4
CO2
143 g/km
Colour
Black
Doors
2
Driven wheels
Rear Wheel Drive
Engine badge
420i
Emissions standard
Euro 6

About this car

This 2020 BMW 4 Series M Sport is advertised with 40,457 miles, approximately 3,200 below the typical mileage for its age. At £18,450, it is advertised £315 above our estimated market asking price of £18,135. We use UK dealer asking prices, including 1,763 BMW 4 Series listings, and account for the car’s age, mileage and specification. Since we first spotted the advert 68 days ago, the asking price has dropped by £1,440. The time on sale and price change could be useful context when negotiating. MOT records show an expiry date of 26 July 2027, and the latest recorded mileage is consistent with the advert. The seller is Sytner Leicester BMW, based in Leicester.

Stock data from 20 October 2026.

How we estimate prices and check cars

Price history

First seen on 14 August 2026, 68 days ago. Advert duration calculated on 21 October 2026. Net asking-price reduction: £1,440 from the first recorded £19,890. 5 price reductions recorded, the latest observed on 15 October 2026.

Recorded asking prices
Date observedAsking price
14 August 2026£19,890
23 August 2026£19,850
11 September 2026£19,500
19 September 2026£19,250
25 September 2026£18,950
15 October 2026£18,450
20 October 2026£18,450

Price and mileage comparison

Estimated market asking price: £18,135. The asking price is £315 above 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 1,763 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 3,200 miles lower than typical for a 2020 BMW 4 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 26 July 2027. 40,207 miles at the last test.

24 other cars with the same year, trim, gearbox and fuel are for sale from £16,800 to £53,950.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£16,80019,927 miles
£17,49544,376 miles
£17,75048,681 miles
£17,99936,373 miles
£18,49936,439 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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Dealer

Sytner Leicester BMW, Leicester. Across the dealer network: 140 branches, 10,337 cars for sale.

Dealer postcode: LE19 1UY.

Dealer opening hours

Monday
08:30-18:00
Tuesday
08:30-18:00
Wednesday
08:30-18:00
Thursday
08:30-18:00
Friday
08:30-18:00
Saturday
09:00-17:00
Sunday
10:00-16:00

Vehicle photos