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: 49,160 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 has covered 49,160 miles. The AskCar estimate for this car is £37,638. It is priced at £38,499, which is £861 above that estimate. The AskCar estimate draws on 756 BMW M3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 28 days ago. Its asking price has since fallen by £500. The government's MOT record matches its advertised mileage. You can find this car at TDC Collection in Watford. 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: £861 (2%) over the AskCar estimate of £37,638.

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 28 days.

Price history

AskCar first saw this advert on 5 October 2026 at £38,999. Its asking price is now £38,499, £500 less. The latest price cut was seen on 2 November 2026.

Price changes recorded:

• 5 October 2026: £38,999
• 6 October 2026: £39,999
• 8 October 2026: £38,999
• 2 November 2026: £38,499

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 May 2027.

It has had 6 MOTs. The latest, on 22 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 48,386 miles, which matches the advertised 49,160 miles.

Advertised mileage is about 1,200 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, white. Mileage: 48,000 miles. Price: £35,990, £2,509 less than this car. Dealer: Auto Prestige in Bradford. AskCar page: https://askcar.co.uk/car/bmw-m3-2018-fcbcdef260c4
• 2018 BMW M3 Competition, 3.0 petrol saloon, black. Mileage: 52,300 miles. Price: £37,999, £500 less than this car. Dealer: TDC Collection in Watford. AskCar page: https://askcar.co.uk/car/bmw-m3-2018-c757fc6150ac
• 2018 BMW M3 Competition, 3.0 petrol saloon, blue. Mileage: 57,000 miles. Price: £38,495, the same price as this car. Dealer: Carderi Motors in Wembley. AskCar page: https://askcar.co.uk/car/bmw-m3-2018-c7aa6f9716ed