2020 BMW 4 Series prices

There are 58 used 2020 BMW 4 Series cars for sale from UK dealers on AskCar, as of 8 November 2026. Typical asking price £20,000 (the median: half cost less, half cost more). The cheapest is £13,899. The middle half are priced between £18,000 and £22,500. Median mileage: about 43,000 miles.

Dealers lowered the asking price on more than a third of 2020 BMW 4 Series cars: 26 of the 58 in the 14 days to 8 November 2026.

2020 BMW 4 Series prices by engine and mileage

EngineAll mileagesUnder 20,000 miles20,000 to 40,000 miles40,000 to 60,000 miles60,000 miles or more
2.0 petrol£19,500Too few for saleToo few for saleToo few for saleToo few for sale

Only 18 of the 2020 BMW 4 Series cars for sale have the 3.0 diesel engine, too few to give a typical asking price.

2020 BMW 4 Series prices by trim

TrimTypical asking price, 2020 cars
M Sport£20,000
M Sport PRO EditionToo few for sale
SportToo few for sale

Only 3 of the 2020 BMW 4 Series cars for sale are M Sport PRO Edition, too few to give a typical asking price.

Only 2 of the 2020 BMW 4 Series cars for sale are Sport, too few to give a typical asking price.

Typical asking prices are of 2020 BMW 4 Series cars for sale on 8 November 2026, and are given only where at least 20 cars with a price are for sale.

2020 BMW 4 Series against other years

A 2019 BMW 4 Series car has a typical asking price of £16,700 and a 2021 one £25,000, as of 8 November 2026.

AskCar lists 1,873 used BMW 4 Series across the UK, from 1,080 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.

2020 BMW 4 Series cars for sale now, page 1 of 2

This page picks out up to 10 cars in each of these groups: best value, cheapest, lowest mileage, recently reduced and newly advertised. 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. 52 of the 56 cars listed here meet these rules. Page 2 lists every other 2020 BMW 4 Series car, cheapest first, including the 4 the groups do not pick from.

The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 1,816 priced BMW 4 Series adverts on AskCar as of 8 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2020 BMW 4 Series.

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.

This list leaves out 2 cars whose advertised mileage is lower than the mileage recorded at their last MOT test.

Best value 2020 BMW 4 Series: priced furthest below the AskCar estimate

These 10 are priced 5% to 16% under their AskCar estimate. Their asking prices run from £15,450 to £22,510.

Cheapest 2020 BMW 4 Series: the lowest asking prices

These 10 are priced £13,899 to £17,980. They have covered 30,335 to 99,896 miles.

Lowest-mileage 2020 BMW 4 Series

These 10 have covered 5,000 to 27,700 miles. Their asking prices run from £18,895 to £26,600.

Recently reduced 2020 BMW 4 Series: the biggest price reductions in the 14 days to 8 November 2026

The dealer lowered the asking price on each of these 10 in the 14 days to 8 November 2026. Their reductions since AskCar first saw them run from £1,500 to £3,000.

Newly advertised 2020 BMW 4 Series: first seen by AskCar in the 7 days to 8 November 2026

These 4 are the most recently advertised. Cars first seen on the same day are listed cheapest first.

BMW 4 Series by gearbox, fuel and body

BMW 4 Series prices by year

BMW 4 Series by trim

2020 BMW 4 Series by trim

BMW 4 Series by price

BMW 4 Series near you

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