2018 BMW M3 3.0 BiTurbo Competition

Overview

• Make: BMW
• Model: M3
• Trim: Competition
• Version: 3.0 BiTurbo Competition DCT RWD Euro 6 (s/s) 4dr (444 bhp)
• Year: 2018
• Mileage: 70,000 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 444 bhp
• Gearbox: Automatic (DCT)
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 194 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW M3 Competition is advertised with 70,000 miles, approximately 22,000 above the typical mileage for its age. The AskCar estimate for this car is £32,648. It is priced at £34,000, which is £1,352 above that estimate. The AskCar estimate uses UK dealer asking prices, including 756 BMW M3 adverts, and accounts for the car’s age, mileage and specification. We first recorded this car for sale 9 days ago. Its advertised mileage matches the government's MOT record. You can find this car at Whitethor Cars in Coalville. 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: £1,352 (4%) over the AskCar estimate of £32,648.

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 756 priced BMW M3 adverts across different ages and specifications, as of 2 November 2026.

A 2018 BMW M3 with the 3.0 petrol engine is typically advertised at £37,500: the median of the 26 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 BMW M3 has been on sale for at least 9 days.

Price history

AskCar first saw this advert on 24 October 2026 at £34,000. 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 2 November 2026: valid until 22 April 2027.

It failed its MOT on 20 April 2026 (nearside front tyre has a cut in excess of the requirements deep enough to reach the ply or cords; offside front tyre has a cut in excess of the requirements deep enough to reach the ply or cords) and passed 2 days later, on 22 April 2026.

There were no advisories at the latest test.

Mileage at that test: 65,575 miles, which matches the advertised 70,000 miles.

Advertised mileage is about 22,000 miles higher than the median mileage of a 2018 BMW M3 on AskCar.

Similar cars

18 other 2018 BMW M3 Competition 3.0 petrol automatic saloons are for sale at UK dealers, from £32,495 to £49,500, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW M3 Competition, 3.0 petrol saloon, black. Mileage: 66,800 miles. Price: £32,495, £1,505 less than this car. Dealer: TT Motor Group in Didcot. AskCar page: https://askcar.co.uk/car/bmw-m3-2018-13e497ccc5c9
• 2018 BMW M3 Competition, 3.0 petrol saloon, black. Mileage: 65,000 miles. Price: £35,390, £1,390 more than this car. Dealer: Elite Cars Scotland in Wishaw. AskCar page: https://askcar.co.uk/car/bmw-m3-2018-3d1bd450f589
• 2018 BMW M3 Competition, 3.0 petrol saloon, black. Mileage: 64,600 miles. Price: £33,995, the same price as this car. Dealer: CSH Performance in Elland. AskCar page: https://askcar.co.uk/car/bmw-m3-2018-55d0484af922

• The nearest: 2018 BMW M3 Competition, 3.0 petrol saloon, grey, 26 miles from this car. Mileage: 27,652 miles. Price: £39,860, £5,860 more than this car. Dealer: Oakdene Collection in Alfreton. AskCar page: https://askcar.co.uk/car/bmw-m3-2018-a4e09a054557