Used BMW X3 M for sale near Leighton Buzzard
There are 4 used BMW X3 M for sale from UK dealers within 20 miles of Leighton Buzzard on AskCar, as of 8 November 2026. The cheapest is £34,999. AskCar lists 130 used BMW X3 M across the UK, from 112 dealerships.
As of 8 November 2026, AskCar lists 595,762 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.
Cars for sale now
Best value first: the cars priced furthest below their AskCar estimate come first, and those without one come after. The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 129 priced BMW X3 M adverts on AskCar as of 8 November 2026.
Each car: year, make, model, engine and trim, power, gearbox, fuel, body, doors, colour; mileage; price and its changes; how the price compares with the AskCar estimate; emissions standard and ULEZ compliance where it holds; MOT; dealer, town and distance; AskCar page.
Cheaper cars like each one, with its price history, are on its AskCar page.
- 2021 BMW X3 M 3.0 Competition, 503 bhp, automatic, petrol, SUV, 5 doors, black. Mileage: 30,200 miles. Price: £42,990, reduced by £11,000 from £53,990 since AskCar first saw it on 14 August 2026, 86 days ago. Good value: £6,153 (12%) under the AskCar estimate of £49,143. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 1 July 2027. Dealer: Park Road Garage in Bedford, 15 miles from Leighton Buzzard. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-24a6a8d0e57f
- 2021 BMW X3 M 3.0 Competition, 503 bhp, automatic, petrol, SUV, 5 doors, black. Mileage: 34,000 miles. Price: £42,990, reduced by £500 from £43,490 since AskCar first saw it on 20 August 2026, 80 days ago. Good value: £5,157 (10%) under the AskCar estimate of £48,147. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 27 April 2027. Dealer: Bedford Car Centres in Bedford, 17 miles from Leighton Buzzard. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-a067b02e33d5
- 2020 BMW X3 M 3.0 Competition, 503 bhp, automatic, petrol, SUV, 5 doors, grey. Mileage: 79,000 miles. Price: £34,999, reduced by £996 from £35,995 since AskCar first saw it on 8 July 2026, 123 days ago. Fair price: £995 (2%) over the AskCar estimate of £34,004. Euro 6 emissions standard. ULEZ compliant. Dealer: Waterways Prestige in Leighton Buzzard, 3 miles from Leighton Buzzard. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2020-c720a0736060
- 2023 BMW X3 M 3.0 Competition, 503 bhp, automatic, petrol, SUV, 5 doors, grey. Mileage: 42,000 miles. Price: £58,000, unchanged since AskCar first saw it on 7 October 2026, 32 days ago. Fair price: £3,867 (7%) over the AskCar estimate of £54,133. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 1 June 2027. Dealer: Sytner Stevenage BMW in Stevenage, 20 miles from Leighton Buzzard. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2023-f4466ff572ad
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