2020 BMW X3 M prices

There are 15 used 2020 BMW X3 M cars for sale from UK dealers on AskCar, as of 7 November 2026. Typical asking price £40,000 (the median: half cost less, half cost more). The cheapest is £34,999. The middle half are priced between £38,000 and £42,500. Median mileage: about 45,000 miles.

Dealers lowered the asking price on more than half of 2020 BMW X3 M cars: 10 of the 15 in the 14 days to 7 November 2026.

2020 BMW X3 M against other years

A 2019 BMW X3 M car has a typical asking price of £40,000 and a 2021 one £46,500, as of 7 November 2026.

AskCar lists 130 used BMW X3 M across the UK, from 112 dealerships.

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.

2020 BMW X3 M cars for sale now

This page picks out up to 10 cars in each of these groups: best value, cheapest, lowest mileage and recently reduced. A car in more than one group is listed in full once. The groups pick only from cars with photos and an AskCar estimate, priced at £500 or more and no more than 25% under that estimate. All 15 cars listed here meet these rules.

The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 128 priced BMW X3 M adverts on AskCar as of 7 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2020 BMW X3 M.

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 and town; AskCar page. Each car's AskCar page has its full price history and cheaper cars like it.

Best value 2020 BMW X3 M: priced furthest below the AskCar estimate

Their asking prices run from £36,990 to £44,990.

Cheapest 2020 BMW X3 M: the lowest asking prices

These 10 are priced £34,999 to £41,500. They have covered 31,024 to 83,230 miles.

Lowest-mileage 2020 BMW X3 M

These 10 have covered 31,024 to 63,000 miles. Their asking prices run from £37,895 to £44,990.

Recently reduced 2020 BMW X3 M: the biggest price reductions in the 14 days to 7 November 2026

The dealer lowered the asking price on each of these 10 in the 14 days to 7 November 2026. Their reductions since AskCar first saw them run from £500 to £4,200.

BMW X3 M prices by year

BMW X3 M near you

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