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: 22,800 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 444 bhp
• Gearbox: Automatic (DCT)
• Drive: Rear-wheel drive
• Colour: White
• CO2: 194 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW M3 Competition is advertised with 22,800 miles, approximately 25,200 below the typical mileage for its age. The dealer is asking £39,995, which is £3,735 below the AskCar estimate of £43,730. To work out the AskCar estimate, we analyse UK dealer adverts for 756 BMW M3 cars across different ages and specifications. We first recorded this advert 88 days ago, and its asking price has since fallen by £3,000. Its advertised mileage matches the government's MOT record. It is for sale at Hampton Car Sales in Northampton. 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

Good value: £3,735 (8%) under the AskCar estimate of £43,730.

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 88 days.

Price history

AskCar first saw this advert on 6 August 2026 at £42,995. Its asking price is now £39,995, £3,000 less. The latest price cut was seen on 29 September 2026.

Price changes recorded:

• 6 August 2026: £42,995
• 5 September 2026: £41,995
• 15 September 2026: £40,995
• 29 September 2026: £39,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 21 December 2026.

It has had 5 MOTs. The latest, on 15 December 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 21,873 miles, which matches the advertised 22,800 miles.

Advertised mileage is about 25,200 miles lower 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, blue. Mileage: 23,084 miles. Price: £44,995, £5,000 more than this car. Dealer: Appreciating Classics in Loddon. AskCar page: https://askcar.co.uk/car/bmw-m3-2018-8897666a8893
• 2018 BMW M3 Competition, 3.0 petrol saloon, red. Mileage: 27,500 miles. Price: £44,995, £5,000 more than this car. Dealer: Que Automotive in Colchester. AskCar page: https://askcar.co.uk/car/bmw-m3-2018-c6c0547eb9c9
• 2018 BMW M3 Competition, 3.0 petrol saloon, grey. Mileage: 27,652 miles. Price: £39,860, £135 less than this car. Dealer: Oakdene Collection in Alfreton. AskCar page: https://askcar.co.uk/car/bmw-m3-2018-a4e09a054557

• The nearest: 2018 BMW M3 Competition, 3.0 petrol saloon, white, 27 miles from this car. Mileage: 8,393 miles. Price: £49,500, £9,505 more than this car. Dealer: Sytner Warwick BMW in Warwick. AskCar page: https://askcar.co.uk/car/bmw-m3-2018-0ca7655b41de