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: 52,300 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 444 bhp
• Gearbox: Automatic (DCT)
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 194 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 52,300 miles, this 2018 BMW M3 Competition has covered about 4,300 more miles than other 2018 BMW M3 cars. Its asking price of £37,999 is £1,061 above the AskCar estimate of £36,938. To work out the AskCar estimate, we analyse UK dealer adverts for 756 BMW M3 cars across different ages and specifications. We have tracked this advert for 39 days. Its advertised mileage matches the government's MOT record. It is advertised by 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: £1,061 (2%) over the AskCar estimate of £36,938.

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 39 days.

Price history

AskCar first saw this advert on 24 September 2026 at £37,999. 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 7 May 2027.

It has had 7 MOTs. The latest, on 5 May 2026, passed.

Advisories at the latest test: rear tyre worn close to legal limit/worn on edge both sides; nearside front nail in tyre; offside rear nail in tyre.

Mileage at that test: 49,564 miles, which matches the advertised 52,300 miles.

Advertised mileage is about 4,300 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: 49,160 miles. Price: £38,499, £500 more than this car. Dealer: TDC Collection in Watford. AskCar page: https://askcar.co.uk/car/bmw-m3-2018-bebd7b3c85fe
• 2018 BMW M3 Competition, 3.0 petrol saloon, white. Mileage: 48,000 miles. Price: £35,990, £2,009 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, blue. Mileage: 57,000 miles. Price: £38,495, £496 more than this car. Dealer: Carderi Motors in Wembley. AskCar page: https://askcar.co.uk/car/bmw-m3-2018-c7aa6f9716ed