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: 72,600 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 139 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 4 Series M Sport is advertised with 72,600 miles, approximately 9,400 above the typical mileage for its age. Priced at £12,488, it is advertised £327 below the AskCar estimate of £12,815. The AskCar estimate uses 1,787 UK dealer adverts for the BMW 4 Series, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 66 days ago, and its asking price has since fallen by £912. Its advertised mileage matches the government's MOT record. The seller is Car Capital, based in Southall. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £327 (2%) under the AskCar estimate of £12,815.

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 1,787 priced BMW 4 Series adverts across different ages and specifications, as of 2 November 2026.

A 2018 BMW 4 Series with the 2.0 petrol engine is typically advertised at £14,800: the median of the 112 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 BMW 4 Series has been on sale for at least 66 days.

Price history

AskCar first saw this advert on 28 August 2026 at £13,400. Its asking price is now £12,488, £912 less. The latest price cut was seen on 29 September 2026.

Price changes recorded:

• 28 August 2026: £13,400
• 12 September 2026: £13,200
• 16 September 2026: £12,988
• 25 September 2026: £12,788
• 29 September 2026: £12,488

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 6 November 2026.

It has had 7 MOTs. The latest, on 6 November 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 62,456 miles, which matches the advertised 72,600 miles.

Advertised mileage is about 9,400 miles higher than the median mileage of a 2018 BMW 4 Series on AskCar.

Similar cars

30 other 2018 BMW 4 Series M Sport 2.0 petrol automatic coupes are for sale at UK dealers, from £9,599 to £18,999, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 4 Series M Sport, 2.0 petrol coupe, black. Mileage: 73,274 miles. Price: £12,795, £307 more than this car. Dealer: Motoring WAY in Abertillery. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-c608ab0df585
• 2018 BMW 4 Series M Sport, 2.0 petrol coupe, black. Mileage: 67,000 miles. Price: £12,994, £506 more than this car. Dealer: Strood Motor Centre in Rochester. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-c992284bf299
• 2018 BMW 4 Series M Sport, 2.0 petrol coupe, black. Mileage: 79,000 miles. Price: £15,000, £2,512 more than this car. Dealer: BWC Used Cars Telford in Telford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-5ee21f5602be

• The nearest: 2018 BMW 4 Series M Sport, 2.0 petrol coupe, white, 10 miles from this car. Mileage: 49,000 miles. Price: £17,490, £5,002 more than this car. Dealer: First Autos in Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-ba1cc968bd4b