2018 BMW M3 3.0 BiTurbo
Price: £34,990. Good value: £3,612 (9%) under the AskCar estimate of £38,602, our expected asking price for this car from its model, age, mileage and specification, drawing on 756 priced BMW M3 adverts on AskCar as of 2 November 2026.
AskCar lists 811 used BMW M3 from 475 UK dealerships, as of 2 November 2026.
Overview
- Make: BMW
- Model: M3
- Version: 3.0 BiTurbo DCT RWD Euro 6 (s/s) 4dr (425 bhp)
- Year: 2018
- Mileage: 42,000 miles
- Fuel: Petrol
- Body: Saloon, 4 doors, 5 seats
- Engine: 3.0 litres, 425 bhp
- Gearbox: Automatic (DCT)
- Drive: Rear-wheel drive
- Colour: Grey
- CO2: 194 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
At 42,000 miles, this 2018 BMW M3 has covered about 6,000 fewer miles than other 2018 BMW M3 cars. The dealer is asking £34,990, which is £3,612 below the AskCar estimate of £38,602. To work out the AskCar estimate, we analyse UK dealer adverts for 756 BMW M3 cars across different ages and specifications. Since we first spotted the advert 12 days ago, the asking price has dropped by £1,000. Its advertised mileage matches the government's MOT record. It is advertised by Smiths Sports and Performance in Melton Mowbray. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 2 November 2026.
Price
Good value: £3,612 (9%) under the AskCar estimate of £38,602.
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 12 days.
Price history
AskCar first saw this advert on 21 October 2026 at £35,990. Its asking price is now £34,990, £1,000 less. The latest price cut was seen on 31 October 2026.
Price changes recorded:
- 21 October 2026: £35,990
- 31 October 2026: £34,990
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 15 October 2027.
It has had 9 MOTs. The latest, on 16 October 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 42,398 miles, which matches the advertised 42,000 miles.
Advertised mileage is about 6,000 miles lower than the median mileage of a 2018 BMW M3 on AskCar.
Browse all BMW M3 cars for sale · 2018 BMW M3 price guide
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Photos
36 photos of this car are on its AskCar page.
As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.