2021 BMW 4 Series

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

£23,450

Fair price: within 8% of the typical £22,866 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 RWD Euro 6 (s/s) 2dr (187 bhp)
Mileage
57,500 miles
Year
2021
Fuel type
Diesel Hybrid
Body type
Coupe
Engine
2.0 L
Gearbox
Automatic
Power
187 bhp
Seats
4
CO2
127 g/km
Colour
Blue
Doors
2
Driven wheels
Rear Wheel Drive
Engine badge
420d; MHT
Hybrid type
Mild hybrid
Emissions standard
Euro 6

About this car

At 57,500 miles, this 2021 BMW 4 Series M Sport has covered about 15,500 more miles than other 2021 BMW 4 Series cars. Its asking price of £23,450 is £584 above our estimate of £22,866. We use UK dealer asking prices, including 1,749 BMW 4 Series listings, and account for the car’s age, mileage and specification. The asking price is now £500 lower than when we first recorded the advert 55 days ago. Its MOT is recorded as valid until 20 August 2027. The advertised mileage is consistent with the latest MOT reading. You can find this car at Danson Motors in Sidcup.

Stock data from 21 October 2026.

How we estimate prices and check cars

Price history

First seen on 28 August 2026, 55 days ago. Advert duration calculated on 22 October 2026. Net asking-price reduction: £500 from the first recorded £23,950. 1 price reduction recorded, the latest observed on 25 September 2026.

Recorded asking prices
Date observedAsking price
28 August 2026£23,950
25 September 2026£23,450
21 October 2026£23,450

Price and mileage comparison

Estimated market asking price: £22,866. The asking price is £584 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 1,749 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 15,500 miles higher than typical for a 2021 BMW 4 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 20 August 2027. 57,698 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 57,500 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