2023 BMW 4 Series

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

£24,995

Fair price: within 8% of the typical £26,727 for this model, age and mileage, drawing on 1,749 adverts of this make and model.

Overview

Make
BMW
Model
4 Series
Trim
M SPORT
Version
2.0 420i M Sport Auto RWD Euro 6 2dr Step (181 bhp)
Mileage
39,899 miles
Year
2023
Fuel type
Petrol
Body type
Coupe
Engine
2.0 L
Gearbox
Automatic
Power
181 bhp
Seats
4
CO2
144 g/km
Colour
White
Doors
2
Driven wheels
Rear Wheel Drive
Engine badge
420i
Emissions standard
Euro 6

About this car

At 39,899 miles, this 2023 BMW 4 Series M Sport has covered about 10,700 more miles than other 2023 BMW 4 Series cars. The dealer is asking £24,995, which is £1,732 below our market estimate of £26,727. Our estimate draws on 1,749 BMW 4 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 84 days ago, the asking price has dropped by £2,895. That history is worth bearing in mind when speaking to the dealer. Its recorded MOT is valid until 30 May 2027, and its advertised mileage is consistent with the latest MOT reading. The seller is Stratstone BMW Milton Keynes, based in Milton Keynes.

Stock data from 21 October 2026.

How we estimate prices and check cars

Price history

First seen on 31 July 2026, 84 days ago. Advert duration calculated on 23 October 2026. Net asking-price reduction: £2,895 from the first recorded £27,890. 5 price reductions recorded, the latest observed on 15 October 2026.

Recorded asking prices
Date observedAsking price
31 July 2026£27,890
1 August 2026£27,890
11 August 2026£27,695
8 September 2026£27,495
22 September 2026£26,995
9 October 2026£25,490
15 October 2026£24,995
21 October 2026£24,995

Price and mileage comparison

Estimated market asking price: £26,727. The asking price is £1,732 below 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 1,749 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 10,700 miles higher than typical for a 2023 BMW 4 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 30 May 2027. 38,304 miles at the last test.

64 other cars with the same year, trim, gearbox and fuel are for sale from £23,799 to £35,880.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£23,79956,183 miles
£24,99937,350 miles
£24,99945,203 miles
£25,89051,584 miles
£25,99029,041 miles

These cars have covered 3,057–56,183 miles, compared with 39,899 miles for this car.

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 · 2023 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