2018 BMW 4 Series 2.0 420i M Sport

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)
• Year: 2018
• Mileage: 53,500 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 143 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 4 Series M Sport has covered 53,500 miles, around 9,600 fewer miles than is typical for its age. It first appeared in our advert records 1 day ago. The government's MOT record matches its advertised mileage. You can find this car at Motionmotorgroup in Market Harborough. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 10 November 2026.

How we estimate prices and check cars

Price

We couldn't read this dealer's website on 10 November 2026, so this price was last confirmed on 9 November 2026 and we haven't given an AskCar estimate.

A 2018 BMW 4 Series with the 2.0 petrol engine is typically advertised at £14,500: the median of the 119 for sale on AskCar, as of 10 November 2026.

Time on sale

AskCar first saw this 2018 BMW 4 Series advertised 1 day ago. About 4 in 10 of 2018 BMW 4 Series cars are gone from sale within a month of being advertised: 136 of the 305 first advertised between 11 July 2026 and 7 October 2026.

Price history

AskCar first saw this advert on 9 November 2026 at £16,470. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 10 November 2026: valid until 8 January 2027.

It has had 6 MOTs. The latest, on 8 January 2026, passed.

Advisories at the latest test: nearside front brake disc worn, pitted or scored, but not seriously weakened; offside front brake disc worn, pitted or scored, but not seriously weakened.

Mileage at that test: 46,170 miles, which matches the advertised 53,500 miles.

Advertised mileage is about 9,600 miles lower than the median mileage of a 2018 BMW 4 Series on AskCar.

Similar cars

12 other 2018 BMW 4 Series M Sport 2.0 petrol automatic convertibles are for sale at UK dealers, from £14,489 to £23,995, as of 10 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 4 Series M Sport, 2.0 petrol convertible, grey. Mileage: 50,500 miles. Price: £14,995, £1,475 less than this car. Dealer: Wimbledon Carriage Company in East Horsley. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-deb8aefb9cc2
• 2018 BMW 4 Series M Sport, 2.0 petrol convertible, grey. Mileage: 48,228 miles. Price: £14,960, £1,510 less than this car. Dealer: Evans Halshaw Kia Hull in Kingston upon Hull. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-90668f76e700
• 2018 BMW 4 Series M Sport, 2.0 petrol convertible, white. Mileage: 44,000 miles. Price: £14,489, £1,981 less than this car. Dealer: Berengrave Services in Gillingham. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-42092cdb1ca8