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: £30,498. Fair price: £688 (2%) over the AskCar estimate of £29,810, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,156 priced BMW 4 Series Gran Coupe adverts on AskCar as of 1 November 2026.

AskCar lists 1,183 used BMW 4 Series Gran Coupe from 750 UK dealerships, as of 1 November 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
20,873 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
Grey
Doors
5
Driven wheels
Rear Wheel Drive
Engine badge
420i
Emissions standard
Euro 6

About this car

At 20,873 miles, this 2023 BMW 4 Series Gran Coupe M Sport has covered about 7,800 fewer miles than other 2023 BMW 4 Series Gran Coupe cars. Its asking price of £30,498 is £688 above the AskCar estimate of £29,810. The AskCar estimate draws on 1,156 BMW 4 Series Gran Coupe adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. It first appeared in our advert records today. Its recorded MOT is valid until 30 October 2027, and its advertised mileage is consistent with the latest MOT reading. The seller is Arnold Clark Stirling Volvo / GWM / BYD, based in Stirling.

Stock data as of 1 November 2026.

How we estimate prices and check cars

Price history

AskCar first saw this advert on 1 November 2026.

Recorded asking prices
Date observedAsking price
1 November 2026£30,498

Price and mileage comparison

Fair price: £688 (2%) over the AskCar estimate of £29,810.

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 1,156 priced BMW 4 Series Gran Coupe adverts across different ages and specifications, as of 1 November 2026.

Advertised mileage is about 7,800 miles lower 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 30 October 2027. 20,943 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 1 November 2026.

The 5 cheapest:

The 54 matching cars have covered 11,380 to 66,907 miles, compared with 20,873 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

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 1 November 2026, AskCar lists 578,994 cars and vans from 12,654 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.