2021 BMW X3 3.0 M40i
Price: £32,000. Good value: £2,918 (8%) under the AskCar estimate of £34,918, our expected asking price for this car from its model, age, mileage and specification, drawing on 3,052 priced BMW X3 adverts on AskCar as of 7 November 2026.
AskCar lists 3,156 used BMW X3 from 1,227 UK dealerships, as of 7 November 2026.
Overview
- Make: BMW
- Model: X3
- Version: 3.0 M40i Auto 4WD Euro 6 5dr (354 bhp)
- Year: 2021
- Mileage: 49,250 miles
- Fuel: Petrol
- Body: SUV, 5 doors, 5 seats
- Engine: 3.0 litres, 354 bhp
- Gearbox: Automatic
- Drive: Four-wheel drive
- Colour: Grey
- CO2: 204 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2021 BMW X3 is advertised with 49,250 miles on the clock. The AskCar estimate for this car is £34,918. It is priced at £32,000, which is £2,918 below that estimate. The AskCar estimate draws on 3,052 BMW X3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 163 days ago. Its advertised mileage matches the government's MOT record. You can find this car at Reverie Autos in Hatfield. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 7 November 2026.
Price
Good value: £2,918 (8%) under the AskCar estimate of £34,918.
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 3,052 priced BMW X3 adverts across different ages and specifications, as of 7 November 2026.
A 2021 BMW X3 with the 3.0 petrol engine is typically advertised at £32,000: the median of the 39 for sale on AskCar, as of 7 November 2026.
Time on sale
This 2021 BMW X3 has been on sale for at least 163 days.
Price history
AskCar first saw this advert on 28 May 2026 at £31,750. Its asking price is now £32,000, £250 more.
Price changes recorded:
- 29 May 2026: £31,750
- 19 June 2026: £31,500
- 19 August 2026: £31,000
- 2 September 2026: £30,500
- 28 October 2026: £31,250
- 5 November 2026: £32,000
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 13 May 2027.
It has had 4 MOTs. The latest, on 14 May 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 49,384 miles, which matches the advertised 49,250 miles.
Advertised mileage is about 1,800 miles higher than the median mileage of a 2021 BMW X3 on AskCar.
Browse all BMW X3 cars for sale · 2021 BMW X3 price guide
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Photos
54 photos of this car are on its AskCar page.
As of 7 November 2026, AskCar lists 601,018 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.