2018 BMW X3 3.0 M40i Sport
Version: 3.0 M40i Sport Auto 4WD Euro 6 5dr (349 bhp)
Price: £26,090. Fair price: £1,577 (6%) over the AskCar estimate of £24,513, our expected asking price for this car from its model, age, mileage and specification, drawing on 2,986 priced BMW X3 adverts on AskCar as of 29 October 2026.
AskCar lists 3,088 used BMW X3 from 1,215 UK dealerships, as of 29 October 2026.
Overview
- Make
- BMW
- Model
- X3
- Trim
- Sport
- Version
- 3.0 M40i Sport Auto 4WD Euro 6 5dr (349 bhp)
- Mileage
- 73,500 miles
- Year
- 2018
- Fuel type
- Petrol
- Body type
- SUV
- Engine
- 3.0 L
- Gearbox
- Automatic
- Power
- 349 bhp
- Seats
- 5
- Colour
- Black
- Doors
- 5
- Driven wheels
- Four Wheel Drive
- Engine badge
- M40i
- Emissions standard
- Euro 6
About this car
With 73,500 miles on the clock, this 2018 BMW X3 Sport has done roughly 9,400 more miles than a typical 2018 BMW X3. The dealer is asking £26,090, which is £1,577 above the AskCar estimate of £24,513. To work out the AskCar estimate, we analyse UK dealer adverts for 2,986 BMW X3 cars across different ages and specifications. It first appeared in our advert records today. MOT records show an expiry date of 26 March 2027, and the latest recorded mileage is consistent with the advert. The seller is MINI UK at Williams Stockport, based in Stockport.
Stock data as of 29 October 2026.
Price history
AskCar first saw this advert on 29 October 2026.
| Date observed | Asking price |
|---|---|
| 29 October 2026 | £26,090 |
Price and mileage comparison
Fair price: £1,577 (6%) over the AskCar estimate of £24,513.
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 2,986 priced BMW X3 adverts across different ages and specifications, as of 29 October 2026.
Advertised mileage is about 9,400 miles higher than the median mileage of a 2018 BMW X3 on AskCar.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT: valid until 26 March 2027. 68,597 miles at the last test.
Other matching cars
1 other 2018 BMW X3 Sport automatic petrol cars are for sale at UK dealers from £25,995 to £25,995, as of 29 October 2026.
- 2018 BMW X3. Price: £25,995. Mileage: 67,326 miles. Dealer: Group 1 Hailsham BMW in Hailsham. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-632837f854e5
The 1 matching cars have covered 67,326 miles, compared with 73,500 miles for this car.
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.
Browse all BMW X3 cars for sale · 2018 BMW X3 price guide
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Photos
1 photo of this car is on its AskCar page.
How to contact the dealer and its opening hours are on this AskCar page.
As of 29 October 2026, AskCar lists 587,923 cars and vans from 12,992 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.