2018 BMW 4 Series Gran Coupe 2.0 420i M Sport

Overview

• Make: BMW
• Model: 4 Series Gran Coupe
• Trim: M Sport
• Version: 2.0 420i M Sport Auto RWD Euro 6 (s/s) 5dr (181 bhp)
• Year: 2018
• Mileage: 119,400 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 134 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 119,400 miles, this 2018 BMW 4 Series Gran Coupe M Sport has covered about 46,200 more miles than other 2018 BMW 4 Series Gran Coupe cars. The dealer is asking £8,990, which is £564 below the AskCar estimate of £9,554. To work out the AskCar estimate, we analyse UK dealer adverts for 1,183 BMW 4 Series Gran Coupe cars across different ages and specifications. We have tracked this advert for 8 days. Its advertised mileage matches the government's MOT record. It is for sale at Automatic Motors in West Drayton. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £564 (5%) under the AskCar estimate of £9,554.

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 1,183 priced BMW 4 Series Gran Coupe adverts across different ages and specifications, as of 6 November 2026.

A 2018 BMW 4 Series Gran Coupe with the 2.0 petrol engine is typically advertised at £13,400: the median of the 124 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2018 BMW 4 Series Gran Coupe has been on sale for at least 8 days.

Price history

AskCar first saw this advert on 29 October 2026 at £8,990. 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 6 November 2026: valid until 20 February 2027.

It failed its MOT on 17 February 2026 (exhaust hydrocarbon content after 2nd fast idle exceeds default limits; exhaust carbon monoxide content at idle exceeds manufacturer's specified limits; exhaust lambda reading after 2nd fast idle outside specified limits; and 4 more) and passed later the same day.

Advisories at the latest test: rear registration plate deteriorated but not likely to be misread; nearside rear shocker bump stop perished.

Mileage at that test: 110,370 miles, which matches the advertised 119,400 miles.

Advertised mileage is about 46,200 miles higher than the median mileage of a 2018 BMW 4 Series Gran Coupe on AskCar.

Similar cars

36 other 2018 BMW 4 Series Gran Coupe M Sport 2.0 petrol automatic hatchbacks are for sale at UK dealers, from £8,795 to £17,995, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, blue. Mileage: 107,388 miles. Price: £9,985, £995 more than this car. Dealer: IM Car Supermarket in Dunstable. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-50a595cc19f1
• 2018 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, white. Mileage: 100,374 miles. Price: £11,495, £2,505 more than this car. Dealer: Second Chance Car Finance in Wetherby. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-3d0d6eebd18b
• 2018 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, white. Mileage: 91,000 miles. Price: £10,490, £1,500 more than this car. Dealer: Ashton Motors in Leicester. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-7769c64d41fc

• The nearest: 2018 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, white, 6 miles from this car. Mileage: 91,000 miles. Price: £10,975, £1,985 more than this car. Dealer: AUR MOTORS in Sunbury-on-Thames. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-4e20ea61a34a