2021 BMW 4 Series

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

£23,349

Good value: £2,259 under the typical £25,608 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 RWD Euro 6 2dr Step (181 bhp)
Mileage
28,025 miles
Year
2021
Fuel type
Petrol
Body type
Coupe
Engine
2.0 L
Gearbox
Automatic
Power
181 bhp
Seats
4
CO2
144 g/km
Colour
Blue
Doors
2
Driven wheels
Rear Wheel Drive
Engine badge
420i
Emissions standard
Euro 6

About this car

With 28,025 miles on the clock, this 2021 BMW 4 Series M Sport has done roughly 12,600 fewer miles than a typical 2021 BMW 4 Series. Its asking price of £23,349 is £2,259 below our estimate of £25,608. The estimate uses 1,758 UK dealer adverts for the BMW 4 Series, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 42 days ago, and its asking price has since fallen by £1,300. The seller is Motorpoint Oldbury, based in Oldbury.

Stock data from 22 October 2026.

How we estimate prices and check cars

Price history

First seen on 11 September 2026, 42 days ago. Advert duration calculated on 23 October 2026. Net asking-price reduction: £1,300 from the first recorded £24,649. 4 price reductions recorded, the latest observed on 13 October 2026.

Recorded asking prices
Date observedAsking price
11 September 2026£24,649
15 September 2026£23,699
22 September 2026£23,599
30 September 2026£23,349
1 October 2026£23,399
6 October 2026£23,599
13 October 2026£23,349
22 October 2026£23,349

Price and mileage comparison

Estimated market asking price: £25,608. The asking price is £2,259 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 1,758 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 12,600 miles lower than typical for a 2021 BMW 4 Series.

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