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: 29,167 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 4 Series Gran Coupe M Sport has covered 29,167 miles, around 44,100 fewer miles than is typical for its age. Its asking price of £16,490 is £929 below the AskCar estimate of £17,419. The AskCar estimate uses UK dealer asking prices, including 1,183 BMW 4 Series Gran Coupe adverts, and accounts for the car’s age, mileage and specification. This car was first seen in our listings data 25 days ago. It is for sale at Moss Hall in Heywood. 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: £929 (5%) under the AskCar estimate of £17,419.

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 25 days.

Price history

AskCar first saw this advert on 12 October 2026 at £16,490. Its asking price has not changed.

Mileage and MOT

Advertised mileage is about 44,100 miles lower 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: 32,572 miles. Price: £15,991, £499 less than this car. Dealer: Cars of Penarth Road in Cardiff. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-a633a30bb0bf
• 2018 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, grey. Mileage: 35,000 miles. Price: £17,488, £998 more than this car. Dealer: Junction 17 Cars (Rugby) in Rugby. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-fa617a505430
• 2018 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, black. Mileage: 40,616 miles. Price: £15,995, £495 less than this car. Dealer: T Wall Approved in Kingswinford. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-4ab91d0a8bff

• The nearest: 2018 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, grey, 6 miles from this car. Mileage: 89,000 miles. Price: £13,494, £2,996 less than this car. Dealer: BVG Automotive in Oldham. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-8c4f4034f52f