Live US dealer listings Median-priced benchmark Updated 2026-08-28
Market price · Used 2021 BMW 840i 13 listings tracked

Used 2021 BMW 840i Price in the US

A used 2021 BMW 840i in the US typically lists for $36,965–$43,998, with a median asking price of $42,222 across 13 active US dealer listings (as of 2026-08-28). The cheapest one listed right now is $33,966, a 2021 Xdrive GC in Arlington, VA — 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. 2021 BMW 840i
    $33,966
    2021 BMW 840i Xdrive GC
    95,564 mi · Arlington, VA · Merlex Auto Group
    View listing →
  2. $34,995
    2021 BMW 840i Convertible
    112,573 mi · Washington, ME · KSR Auto Sales
    View listing →
  3. 2021 BMW 840i
    $36,661
    2021 BMW 840i Xdrive GC
    110,240 mi · Tallahassee, FL · Mercedes-Benz of Tallahassee
    View listing →
  4. 2021 BMW 840i
    $36,965
    2021 BMW 840i Gran
    50,573 mi · Sunnyvale, CA · Toyota Sunnyvale
    View listing →
  5. $39,223
    2021 BMW 840i Xdrive GC
    74,313 mi · Dallas, TX · Sewell Lexus of Dallas
    View listing →
  6. $41,118
    2021 BMW 840i Xdrive GC
    69,420 mi · Charleston, SC · Rick Hendrick BMW Charleston
    View listing →
  7. $42,222
    2021 BMW 840i Xdrive GC
    50,096 mi · Huntley, IL · Huntley Ford
    View listing →
  8. $43,799
    2021 BMW 840i Gran
    31,896 mi · Morrow, GA · Heritage Cadillac Mitsubishi
    View listing →
  9. 2021 BMW 840i
    $43,900
    2021 BMW 840i Xdrive GC
    31,415 mi · Lockport, IL · Bettenhausen Chrysler Dodge Jeep Ram of Lockport
    View listing →
  10. 2021 BMW 840i
    $43,998
    2021 BMW 840i Xdrive GC
    50,800 mi · Woodbury, NY · DRIVEMAX
    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 2021 BMW 840i asks $36,965–$43,998. Cars this far under usually carry an older model year, a base trim or high mileage.

FAQ

How much does a used 2021 BMW 840i cost?

A used 2021 BMW 840i in the US typically lists for $36,965 to $43,998, with a median asking price of $42,222 across 13 active US dealer listings. Nine in ten are priced between $34,583 and $50,337 (as of 2026-08-28, source: UnderMarket Cars).

Is $42,000 a good price for a used 2021 BMW 840i?

That sits at about the market median ($42,222) for a used 2021 BMW 840i. Under $36,965 puts you in the cheapest quarter of active US listings and under $34,583 in the cheapest 5%; above $50,337 is the priciest 5% (as of 2026-08-28).

What is the cheapest used 2021 BMW 840i for sale right now?

$33,966 — a 2021 BMW 840i Xdrive GC in Arlington, VA, $8,256 under the median (as of 2026-08-28).

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 840i price page at least twice a day. The data date shown on this page is 2026-08-28.

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Prices updated 2026-08-28. Data covers active dealer listings across the USA.