2018 BMW M4 3.0 BiTurbo Competition

Overview

• Make: BMW
• Model: M4
• Trim: Competition
• Version: 3.0 BiTurbo Competition DCT RWD Euro 6 (s/s) 2dr
• Year: 2018
• Mileage: 68,807 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 3.0 litres
• Gearbox: Automatic (DCT)
• Drive: Rear-wheel drive
• Colour: White
• CO2: 203 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW M4 Competition has covered 68,807 miles, around 15,800 more miles than is typical for its age. The AskCar estimate for this car is £27,203. It is priced at £26,495, which is £708 below that estimate. The AskCar estimate uses 738 UK dealer adverts for the BMW M4, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 25 days ago, and its asking price has since fallen by £3,500. Its advertised mileage matches the government's MOT record. It is for sale at Roadside Motors Lurgan in Armagh City, Banbridge and Craigavon. 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: £708 (2%) under the AskCar estimate of £27,203.

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 738 priced BMW M4 adverts across different ages and specifications, as of 2 November 2026.

A 2018 BMW M4 with the 3.0 petrol engine is typically advertised at £29,000: the median of the 68 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 BMW M4 has been on sale for at least 25 days.

Price history

AskCar first saw this advert on 8 October 2026 at £29,995. Its asking price is now £26,495, £3,500 less. The latest price cut was seen on 9 October 2026.

Price changes recorded:

• 8 October 2026: £29,995
• 9 October 2026: £26,495

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 2 September 2027.

It has had 4 MOTs. The latest, on 31 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 68,601 miles, which matches the advertised 68,807 miles.

Advertised mileage is about 15,800 miles higher than the median mileage of a 2018 BMW M4 on AskCar.

Similar cars

7 other 2018 BMW M4 Competition 3.0 petrol automatic convertibles are for sale at UK dealers, from £22,500 to £30,990, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW M4 Competition, 3.0 petrol convertible, white. Mileage: 70,000 miles. Price: £24,995, £1,500 less than this car. Dealer: R & S Car Sales in Perth. AskCar page: https://askcar.co.uk/car/bmw-m4-2018-f202cf510f66
• 2018 BMW M4 Competition, 3.0 petrol convertible, white. Mileage: 72,000 miles. Price: £24,999, £1,496 less than this car. Dealer: Waterways Prestige in Leighton Buzzard. AskCar page: https://askcar.co.uk/car/bmw-m4-2018-11c92b55e920
• 2018 BMW M4 Competition, 3.0 petrol convertible, blue. Mileage: 58,000 miles. Price: £28,450, £1,955 more than this car. Dealer: Motorexe in Redbridge. AskCar page: https://askcar.co.uk/car/bmw-m4-2018-aa5ff0d10d71