Live US dealer listings Median-priced benchmark Updated 2026-08-27
Market price · Used 2020 BMW M850i 18 listings tracked

Used 2020 BMW M850i Price in the US

A used 2020 BMW M850i in the US typically lists for $40,119–$48,261, with a median asking price of $44,697 across 18 active US dealer listings (as of 2026-08-27). The cheapest one listed right now is $33,495, a 2020 Xdrive GC in Atlantic Highlands, NJ — below 95% of the market, so expect an older model year, a base trim or high mileage.

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Cheapest 10 listed right now

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  1. $33,495
    2020 BMW M850i Xdrive GC
    84,700 mi · Atlantic Highlands, NJ · nj auto xchange llc
    View listing →
  2. $37,900
    2020 BMW M850i Xdrive GC
    79,757 mi · Winston Salem, NC · Auto World Of Winston-Salem
    View listing →
  3. 2020 BMW M850i
    $38,379
    2020 BMW M850i Xdrive GC
    75,368 mi · Laurel, MD · Sheehy Toyota of Laurel
    View listing →
  4. 2020 BMW M850i
    $38,386
    2020 BMW M850i Xdrive GC
    83,888 mi · South Jordan, UT · Tim Dahle Nissan Southtowne
    View listing →
  5. 2020 BMW M850i
    $39,995
    2020 BMW M850i Xdrive GC
    77,958 mi · Bristol, CT · Riverside Auto Center
    View listing →
  6. $40,491
    2020 BMW M850i Xdrive GC
    75,138 mi · Irmo, SC · Lake Murray Mitsubishi
    View listing →
  7. $43,249
    2020 BMW M850i Xdrive GC
    11,542 mi · Twinsburg, OH · Carena Motors
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  8. $44,000
    2020 BMW M850i Xdrive GC
    62,535 mi · Fenton, MI · Lasco Ford
    View listing →
  9. 2020 BMW M850i
    $44,396
    2020 BMW M850i Xdrive GC
    57,079 mi · Kennesaw, GA · AutoNation USA Kennesaw
    View listing →
  10. 2020 BMW M850i
    $44,999
    2020 BMW M850i Xdrive GC
    68,000 mi · Spring Valley, NY · Carvana - New York City
    View listing →

These are the bottom of the market, not the going rate — every one is priced below 95% of active listings. A typical used 2020 BMW M850i asks $40,119–$48,261. Cars this far under usually carry an older model year, a base trim or high mileage.

FAQ

How much does a used 2020 BMW M850i cost?

A used 2020 BMW M850i in the US typically lists for $40,119 to $48,261, with a median asking price of $44,697 across 18 active US dealer listings. Nine in ten are priced between $37,239 and $63,576 (as of 2026-08-27, source: UnderMarket Cars).

Is $45,000 a good price for a used 2020 BMW M850i?

That sits at about the market median ($44,697) for a used 2020 BMW M850i. Under $40,119 puts you in the cheapest quarter of active US listings and under $37,239 in the cheapest 5%; above $63,576 is the priciest 5% (as of 2026-08-27).

What is the cheapest used 2020 BMW M850i for sale right now?

$33,495 — a 2020 BMW M850i Xdrive GC in Atlantic Highlands, NJ, $11,202 under the median (as of 2026-08-27).

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 2020 BMW M850i price page at least twice a day. The data date shown on this page is 2026-08-27.

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Prices updated 2026-08-27. Data covers active dealer listings across the USA.