2021 BMW 4 Series

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

£26,750

Fair price: within 8% of the typical £25,547 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 [Pro Pack] Auto RWD Euro 6 2dr Step (181 bhp)
Mileage
36,115 miles
Year
2021
Fuel type
Petrol
Body type
Convertible
Engine
2.0 L
Gearbox
Automatic
Power
181 bhp
Seats
4
CO2
154 g/km
Colour
Blue
Doors
2
Driven wheels
Rear Wheel Drive
Engine badge
420i
Emissions standard
Euro 6

About this car

At 36,115 miles, this 2021 BMW 4 Series M Sport has covered about 4,500 fewer miles than other 2021 BMW 4 Series cars. Its asking price of £26,750 is £1,203 above our estimate of £25,547. 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 saw this car advertised 19 days ago. Its asking price has since fallen by £200. MOT records show an expiry date of 7 May 2027, and the latest recorded mileage is consistent with the advert. The seller is Sytner Luton BMW, based in Luton.

Stock data from 22 October 2026.

How we estimate prices and check cars

Price history

First seen on 4 October 2026, 19 days ago. Advert duration calculated on 23 October 2026. Net asking-price reduction: £200 from the first recorded £26,950. 1 price reduction recorded, the latest observed on 17 October 2026.

Recorded asking prices
Date observedAsking price
4 October 2026£26,950
17 October 2026£26,750
22 October 2026£26,750

Price and mileage comparison

Estimated market asking price: £25,547. The asking price is £1,203 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 4,500 miles lower than typical for a 2021 BMW 4 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 7 May 2027. 34,227 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