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: 32,572 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 134 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 4 Series Gran Coupe M Sport has covered 32,572 miles, around 40,700 fewer miles than is typical for its age. Its asking price of £15,991 is £1,113 below the AskCar estimate of £17,104. The AskCar estimate uses 1,183 UK dealer adverts for the BMW 4 Series Gran Coupe, with adjustments for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 15 days ago. Its advertised mileage matches the government's MOT record. It is for sale at Cars of Penarth Road in Cardiff. 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: £1,113 (6%) under the AskCar estimate of £17,104.

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 15 days.

Price history

AskCar first saw this advert on 22 October 2026 at £15,991. 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 29 June 2027.

It has had 6 MOTs. The latest, on 11 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 31,404 miles, which matches the advertised 32,572 miles.

Advertised mileage is about 40,700 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, grey. Mileage: 35,000 miles. Price: £17,488, £1,497 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, grey. Mileage: 29,167 miles. Price: £16,490, £499 more than this car. Dealer: Moss Hall in Heywood. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-65aa5cf7a68e
• 2018 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, black. Mileage: 40,616 miles. Price: £15,995, the same price as 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, black, 29 miles from this car. Mileage: 43,785 miles. Price: £16,490, £499 more than this car. Dealer: County Specialist Vehicles in Taunton. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-e24579cfdf64