2025 BMW 4 Series 2.0 420i M Sport

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

Price: £42,845. Fair price: £1,225 (2%) over the AskCar estimate of £41,620, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,747 priced BMW 4 Series adverts on AskCar as of 30 October 2026.

AskCar lists 1,781 used BMW 4 Series from 1,037 UK dealerships, as of 30 October 2026.

Overview

Make
BMW
Model
4 Series
Trim
M Sport
Version
2.0 420i M Sport Auto RWD Euro 6 (s/s) 2dr (181 bhp)
Mileage
1,146 miles
Year
2025
Fuel type
Petrol
Body type
Convertible
Engine
2.0 L
Gearbox
Automatic
Power
181 bhp
Seats
4
CO2
169 g/km
Colour
White
Doors
2
Driven wheels
Rear Wheel Drive
Engine badge
420i
Emissions standard
Euro 6

About this car

This 2025 BMW 4 Series M Sport is advertised with 1,146 miles, approximately 6,200 below the typical mileage for its age. Priced at £42,845, it is advertised £1,225 above the AskCar estimate of £41,620. The AskCar estimate uses 1,747 UK dealer adverts for the BMW 4 Series, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 62 days ago, and its asking price has since fallen by £2,145. It may give you a starting point for a conversation about price. The seller is MINI UK at Williams Stockport, based in Stockport.

Stock data as of 30 October 2026.

How we estimate prices and check cars

Price history

AskCar first saw this advert on 29 August 2026, 62 days ago. Price reduced by £2,145 from £44,990 since AskCar first saw it. 3 price reductions recorded, the latest seen on 17 October 2026.

Recorded asking prices
Date observedAsking price
29 August 2026£44,990
18 September 2026£44,485
3 October 2026£43,445
17 October 2026£42,845
30 October 2026£42,845

Price and mileage comparison

Fair price: £1,225 (2%) over the AskCar estimate of £41,620.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 1,747 priced BMW 4 Series adverts across different ages and specifications, as of 30 October 2026.

Advertised mileage is about 6,200 miles lower than the median mileage of a 2025 BMW 4 Series on AskCar.

MOT

MOT: first test not yet due.

Other matching cars

49 other 2025 BMW 4 Series M Sport automatic petrol cars are for sale at UK dealers from £33,000 to £44,995, as of 30 October 2026.

The 5 cheapest:

The 49 matching cars have covered 1,500 to 15,184 miles, compared with 1,146 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.

Browse all BMW 4 Series cars for sale · 2025 BMW 4 Series price guide

More like this

Photos

4 photos of this car are on its AskCar page.

How to contact the dealer and its opening hours are on this AskCar page.

As of 30 October 2026, AskCar lists 580,490 cars and vans from 12,695 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.