2021 plate

2021 BMW 4 Series prices

Market data through 10 August 2026 · 33 dealers

£25,489 median asking price · 43 used 2021 4 Seriess with recorded mileage

-1.2% over 30 days

On the same forecourt today, a 2022 costs about 10% more and a 2020 about 39% less. Typical mileage on a 2021 is 42,800.

Roughly £492/month on the midpoint price — 60 months, £2,549 deposit, representative 10.9% APR — indicative, not a quote. We don't arrange finance; this is here so the price means something in the terms most people buy in.

44
Advertised now
33
Dealers
42,800
Median mileage
30 days
Median time advertised
40%
Have had a price cut
Which 2021 4 Seriess are worth buying? The page above is the whole market. Ask Torq on WhatsApp which of the cars actually for sale are the good ones.

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What people are asking for a 2021 4 Series

Position in the marketAsking price
Cheapest 10%under £21,055
Lower quarterunder £23,498
Midpoint£25,489
Upper quarterover £27,934
Dearest 10%over £31,357

2021 against every other 4 Series year

YearMedian asking priceMedian mileageAdvertised
2026 £41,995 2,747 55
2023 £30,944 25,391 44
2022 £27,968 31,514 81
2021 — this page £25,489 42,800 44
2020 £18,342 50,600 43
2019 £16,498 53,280 74
2018 £14,976 62,555 85
2017 £13,992 72,000 57
2016 £12,498 77,750 63
2015 £10,995 85,000 46

More on the BMW 4 Series

How this is measured. 2021 refers to the registration year. Figures are seven-day trailing medians over days that passed our data-quality checks, covering cars with recorded mileage above 1,000.

Comparisons between years describe different cars on sale today — a 2021 car next to a newer one — not one car losing value over time.

Market data through 10 August 2026, based on 7 days of measurements.