2021 BMW 4 Series

2.0 420d MHT M Sport Auto 4WD Euro 6 (s/s) 2dr (187 bhp)

£20,000

Fair price: within 8% of the typical £20,065 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 420d MHT M Sport Auto 4WD Euro 6 (s/s) 2dr (187 bhp)
Mileage
72,509 miles
Year
2021
Fuel type
Diesel Hybrid
Body type
Coupe
Engine
2.0 L
Gearbox
Automatic
Power
187 bhp
Seats
4
CO2
135 g/km
Colour
Blue
Doors
2
Driven wheels
Four Wheel Drive
Engine badge
420d; MHT
Hybrid type
Mild hybrid
Emissions standard
Euro 6

About this car

With 72,509 miles on the clock, this 2021 BMW 4 Series M Sport has done roughly 30,500 more miles than a typical 2021 BMW 4 Series. At £20,000, it is advertised £65 below our estimated market asking price of £20,065. The estimate uses 1,749 UK dealer adverts for the BMW 4 Series, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 28 days ago, and its asking price has since fallen by £900. MOT records show an expiry date of 4 August 2027, and the latest recorded mileage is consistent with the advert. You can find this car at Car Planet Watford in Rickmansworth.

Stock data from 21 October 2026.

How we estimate prices and check cars

Price history

First seen on 24 September 2026, 28 days ago. Advert duration calculated on 22 October 2026. Net asking-price reduction: £900 from the first recorded £20,900. 3 price reductions recorded, the latest observed on 21 October 2026.

Recorded asking prices
Date observedAsking price
24 September 2026£20,900
5 October 2026£20,600
16 October 2026£20,300
21 October 2026£20,000

Price and mileage comparison

Estimated market asking price: £20,065. The asking price is £65 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 30,500 miles higher than typical for a 2021 BMW 4 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 4 August 2027. 72,458 miles at the last test.

53 other cars with the same year, trim, gearbox and fuel are for sale from £16,995 to £29,940.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£16,995101,850 miles
£17,90097,000 miles
£18,90093,379 miles
£18,98565,079 miles
£18,99095,385 miles

These cars have covered 13,800–101,850 miles, compared with 72,509 miles for this car.

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 · 2021 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