2018 BMW 4 Series

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

£16,890

Fair price: within 8% of the typical £16,784 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 GPF M Sport Auto RWD Euro 6 (s/s) 2dr (181 bhp)
Mileage
28,363 miles
Year
2018
Fuel type
Petrol
Body type
Convertible
Engine
2.0 L
Gearbox
Automatic
Power
181 bhp
Seats
4
CO2
143 g/km
Colour
White
Doors
2
Driven wheels
Rear Wheel Drive
Engine badge
420i
Emissions standard
Euro 6

About this car

At 28,363 miles, this 2018 BMW 4 Series M Sport has covered about 34,600 fewer miles than other 2018 BMW 4 Series cars. Its asking price of £16,890 is £106 above our estimate of £16,784. The estimate uses 1,749 UK dealer adverts for the BMW 4 Series, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 64 days ago. Its asking price has since fallen by £700. The time on sale and price change could be useful context when negotiating. Its recorded MOT is valid until 25 August 2027, and its advertised mileage is consistent with the latest MOT reading. It is for sale at Shirlton Car Sales in Cannock.

Stock data from 21 October 2026.

How we estimate prices and check cars

Price history

First seen on 20 August 2026, 64 days ago. Advert duration calculated on 23 October 2026. Net asking-price reduction: £700 from the first recorded £17,590. 4 price reductions recorded, the latest observed on 11 October 2026.

Recorded asking prices
Date observedAsking price
20 August 2026£17,590
5 September 2026£17,490
8 September 2026£16,990
11 September 2026£17,275
16 September 2026£16,890
30 September 2026£17,190
11 October 2026£16,890
21 October 2026£16,890

Price and mileage comparison

Estimated market asking price: £16,784. The asking price is £106 above 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 34,600 miles lower than typical for a 2018 BMW 4 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 25 August 2027. 28,377 miles at the last test.

69 other cars with the same year, trim, gearbox and fuel are for sale from £9,599 to £28,750.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£9,599117,000 miles
£10,299116,703 miles
£10,50065,800 miles
£11,295105,000 miles
£12,48872,600 miles

These cars have covered 10,000–117,000 miles, compared with 28,363 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 · 2018 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