Used 2021 BMW M850i Price in the US
A used 2021 BMW M850i in the US typically lists for $42,995–$54,350, with a median asking price of $50,897 across 20 active US dealer listings (as of 2026-08-30). The cheapest one listed right now is $40,863, a 2021 Xdrive GC in Redondo Beach, CA — below 95% of the market, so expect an older model year, a base trim or high mileage.
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$41,1522021 BMW M850i Xdrive GC72,577 mi · Chandler, AZ · STG Auto Group of ChandlerView listing →
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These are the bottom of the market, not the going rate — every one is priced below 95% of active listings. A typical used 2021 BMW M850i asks $42,995–$54,350. Cars this far under usually carry an older model year, a base trim or high mileage.
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10 pinnedFAQ
How much does a used 2021 BMW M850i cost?
A used 2021 BMW M850i in the US typically lists for $42,995 to $54,350, with a median asking price of $50,897 across 20 active US dealer listings. Nine in ten are priced between $41,138 and $58,597 (as of 2026-08-30, source: UnderMarket Cars).
Is $51,000 a good price for a used 2021 BMW M850i?
That sits at about the market median ($50,897) for a used 2021 BMW M850i. Under $42,995 puts you in the cheapest quarter of active US listings and under $41,138 in the cheapest 5%; above $58,597 is the priciest 5% (as of 2026-08-30).
What is the cheapest used 2021 BMW M850i for sale right now?
$40,863 — a 2021 BMW M850i Xdrive GC in Redondo Beach, CA, $10,034 under the median (as of 2026-08-30).
Are these MSRP or real asking prices?
Real asking prices from active US dealer listings, deduplicated by VIN — not manufacturer MSRP. They already reflect dealer discounts, and they exclude tax, title, registration and dealer fees.
How often are prices updated?
UnderMarket Cars refreshes US dealer listings continuously and re-generates this used 2021 BMW M850i price page at least twice a day. The data date shown on this page is 2026-08-30.
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Prices updated 2026-08-30. Data covers active dealer listings across the USA.