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: £39,750. Above the going rate: £3,461 (9%) over the AskCar estimate of £36,289, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,775 priced BMW 4 Series adverts on AskCar as of 31 October 2026.

AskCar lists 1,813 used BMW 4 Series from 1,042 UK dealerships, as of 31 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
19,453 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
Black
Doors
2
Driven wheels
Rear Wheel Drive
Engine badge
420i
Emissions standard
Euro 6

About this car

With 19,453 miles on the clock, this 2025 BMW 4 Series M Sport has done roughly 12,000 more miles than a typical 2025 BMW 4 Series. Priced at £39,750, it is advertised £3,461 above the AskCar estimate of £36,289. The AskCar estimate draws on 1,775 BMW 4 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data today. It is advertised by Wollaston BMW in Northampton.

Stock data as of 31 October 2026.

How we estimate prices and check cars

Price history

AskCar first saw this advert on 31 October 2026.

Recorded asking prices
Date observedAsking price
31 October 2026£39,750

Price and mileage comparison

Above the going rate: £3,461 (9%) over the AskCar estimate of £36,289.

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 1,775 priced BMW 4 Series adverts across different ages and specifications, as of 31 October 2026.

Advertised mileage is about 12,000 miles higher than the median mileage of a 2025 BMW 4 Series on AskCar.

MOT

MOT: first test not yet due.

Other matching cars

51 other 2025 BMW 4 Series M Sport automatic petrol cars are for sale at UK dealers from £33,000 to £43,771, as of 31 October 2026.

The 5 cheapest:

The 51 matching cars have covered 1,500 to 15,184 miles, compared with 19,453 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

20 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 31 October 2026, AskCar lists 583,548 cars and vans from 12,716 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.