Used BMW 4 Series convertible for sale under £20,000

There are 281 used BMW 4 Series convertible under £20,000 for sale from UK dealers on AskCar, as of 29 October 2026. Typical asking price £14,300 (the median: half cost less, half cost more). The cheapest is £6,495. AskCar lists 1,794 used BMW 4 Series across the UK, from 1,046 dealerships.

The middle half of the 281 cars are priced between £11,300 and £16,800.

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.

90 of the 281 cars had their price reduced in the last 14 days to 29 October 2026.

Median asking price by year

YearFor sale with a priceMedian asking priceMiddle half priced between
201938£16,500£15,500 to £17,800
201851£16,800£15,000 to £18,000
201744£14,600£12,600 to £16,800
201639£13,000£11,500 to £15,700
201560£11,500£9,700 to £13,300
201440£10,400£8,000 to £11,900

Cars for sale now, page 1 of 3

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 1,736 priced BMW 4 Series adverts on AskCar as of 29 October 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 and town; AskCar page.

Cheaper cars like each one, with its price history, are on its AskCar page.

BMW 4 Series by gearbox, fuel and body

BMW 4 Series convertible by price

BMW 4 Series prices by year

BMW 4 Series by price

BMW 4 Series near you

Convertible cars under £20,000

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