2021 BMW 4 Series

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

£26,350

Fair price: within 8% of the typical £24,860 for this model, age and mileage, drawing on 1,757 adverts of this make and model.

Overview

Make
BMW
Model
4 Series
Trim
M SPORT PRO EDITION
Version
2.0 420i M Sport Pro Edition Auto RWD Euro 6 (s/s) 2dr (181 bhp)
Mileage
51,000 miles
Year
2021
Fuel type
Petrol
Body type
Coupe
Engine
2.0 L
Gearbox
Automatic
Power
181 bhp
Seats
4
CO2
151 g/km
Colour
Blue
Doors
2
Driven wheels
Rear Wheel Drive
Engine badge
420i
Emissions standard
Euro 6

About this car

This 2021 BMW 4 Series M Sport Pro Edition is advertised with 51,000 miles, approximately 8,700 above the typical mileage for its age. Its asking price of £26,350 is £1,490 above our estimate of £24,860. We use UK dealer asking prices, including 1,757 BMW 4 Series listings, and account for the car’s age, mileage and specification. Since we first spotted the advert 103 days ago, the asking price has dropped by £500. It may give you a starting point for a conversation about price. Its recorded MOT is valid until 25 June 2027, and its advertised mileage is consistent with the latest MOT reading. The seller is Keith Motors (Christchurch), based in Christchurch.

Stock data from 27 October 2026.

How we estimate prices and check cars

Price history

First seen on 17 July 2026, 103 days ago. Advert duration calculated on 28 October 2026. Net asking-price reduction: £500 from the first recorded £26,850. 1 price reduction recorded, the latest observed on 5 September 2026.

Recorded asking prices
Date observedAsking price
17 July 2026£26,850
5 September 2026£26,350
17 September 2026£26,350
25 September 2026£26,350
17 October 2026£26,350
27 October 2026£26,350

Price and mileage comparison

Estimated market asking price: £24,860. The asking price is £1,490 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 1,757 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 8,700 miles higher than typical for a 2021 BMW 4 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 25 June 2027. 50,470 miles at the last test.

10 other cars with the same year, trim, gearbox and fuel are for sale from £23,950 to £29,290.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£23,95051,676 miles
£24,99047,700 miles
£25,49544,428 miles
£25,99842,801 miles
£26,99931,572 miles

These cars have covered 14,047–51,676 miles, compared with 51,000 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

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