2023 BMW 4 Series Gran Coupe 2.0 420i M Sport

Version: 2.0 420i M Sport Auto RWD Euro 6 5dr Step (181 bhp)

Price: £28,250. Fair price: £434 (1%) under the AskCar estimate of £28,684, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,167 priced BMW 4 Series Gran Coupe adverts on AskCar as of 31 October 2026.

AskCar lists 1,189 used BMW 4 Series Gran Coupe from 748 UK dealerships, as of 31 October 2026.

Overview

Make
BMW
Model
4 Series Gran Coupe
Trim
M Sport
Version
2.0 420i M Sport Auto RWD Euro 6 5dr Step (181 bhp)
Mileage
29,037 miles
Year
2023
Fuel type
Petrol
Body type
Coupe
Engine
2.0 L
Gearbox
Automatic
Power
181 bhp
Seats
5
CO2
152 g/km
Colour
White
Doors
5
Driven wheels
Rear Wheel Drive
Engine badge
420i
Emissions standard
Euro 6

About this car

This 2023 BMW 4 Series Gran Coupe M Sport has covered 29,037 miles. The dealer is asking £28,250, which is £434 below the AskCar estimate of £28,684. To work out the AskCar estimate, we analyse UK dealer adverts for 1,167 BMW 4 Series Gran Coupe cars across different ages and specifications. This car was first seen in our listings data today. MOT records show an expiry date of 27 April 2027, and the latest recorded mileage is consistent with the advert. The seller is Sytner Swansea MINI, based in Swansea.

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£28,250

Price and mileage comparison

Fair price: £434 (1%) under the AskCar estimate of £28,684.

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 1,167 priced BMW 4 Series Gran Coupe adverts across different ages and specifications, as of 31 October 2026.

Advertised mileage is about 700 miles higher than the median mileage of a 2023 BMW 4 Series Gran Coupe on AskCar.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT: valid until 27 April 2027. 23,064 miles at the last test.

Other matching cars

54 other 2023 BMW 4 Series Gran Coupe M Sport automatic petrol cars are for sale at UK dealers from £22,995 to £33,498, as of 31 October 2026.

The 5 cheapest:

The 54 matching cars have covered 11,380 to 66,907 miles, compared with 29,037 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 Gran Coupe cars for sale · 2023 BMW 4 Series Gran Coupe price guide

More like this

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.