2021 BMW 4 Series

2.0 420i M Sport Auto 4WD Euro 6 (s/s) 2dr (181 bhp)

£26,750

Fair price: within 8% of the typical £26,521 for this model, age and mileage, drawing on 1,758 adverts of this make and model.

Overview

Make
BMW
Model
4 Series
Trim
M SPORT
Version
2.0 420i M Sport Auto 4WD Euro 6 (s/s) 2dr (181 bhp)
Mileage
24,024 miles
Year
2021
Fuel type
Petrol
Body type
Coupe
Engine
2.0 L
Gearbox
Automatic
Power
181 bhp
Seats
4
CO2
159 g/km
Colour
Blue
Doors
2
Driven wheels
Four Wheel Drive
Engine badge
420i
Emissions standard
Euro 6

About this car

With 24,024 miles on the clock, this 2021 BMW 4 Series M Sport has done roughly 16,600 fewer miles than a typical 2021 BMW 4 Series. Our estimated market asking price is £26,521. This car is advertised at £26,750, which is £229 above that figure. Our estimate draws on 1,758 BMW 4 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. The asking price is now £240 lower than when we first recorded the advert 45 days ago. Our records show an MOT expiry date of 25 August 2026, which has passed. Ask the dealer for an update. Our comparison with the latest MOT reading has not flagged a mileage discrepancy. The seller is Stratstone Select Bracknell, based in Bracknell.

Stock data from 22 October 2026.

How we estimate prices and check cars

Price history

First seen on 8 September 2026, 45 days ago. Advert duration calculated on 23 October 2026. Net asking-price reduction: £240 from the first recorded £26,990. 1 price reduction recorded, the latest observed on 30 September 2026.

Recorded asking prices
Date observedAsking price
8 September 2026£26,990
30 September 2026£26,750
22 October 2026£26,750

Price and mileage comparison

Estimated market asking price: £26,521. The asking price is £229 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 1,758 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 16,600 miles lower than typical for a 2021 BMW 4 Series.

The advertised mileage is consistent with the last MOT reading.

The recorded MOT has expired; ask the dealer for an up-to-date MOT.

MOT

MOT not valid until 25 August 2026. 16,620 miles at the last test.

87 other cars with the same year, trim, gearbox and fuel are for sale from £16,995 to £41,000.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£16,99596,000 miles
£17,49056,431 miles
£18,99097,313 miles
£19,90077,199 miles
£20,95070,584 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 · 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