Used 2021 BMW M340i Price in the US
A used 2021 BMW M340i in the US typically lists for $34,920–$42,950, with a median asking price of $39,608 across 74 active US dealer listings (as of 2026-10-17). The cheapest one listed right now is $27,995, a 2021 Xdrive in Wanaque, NJ — below 95% of the market, so expect high mileage, a base trim or a branded title — check the vehicle history.
- Typical range
- $34,920 – $42,950
- Median
- $39,608
- Cheapest 5%
- under $29,516
- Cheapest listed now
- $27,995
Browse by model year
typical price per yearCheapest 10 listed right now
ranked by price
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 M340i asks $34,920–$42,950. Cars this far under: expect high mileage, a base trim or a branded title — check the vehicle history.
Deals on the map
10 pinnedFAQ
How much does a used 2021 BMW M340i cost?
A used 2021 BMW M340i in the US typically lists for $34,920 to $42,950, with a median asking price of $39,608 across 74 active US dealer listings. Nine in ten are priced between $29,516 and $48,932 (as of 2026-10-17, source: UnderMarket Cars).
Is $40,000 a good price for a used 2021 BMW M340i?
That sits at about the market median ($39,608) for a used 2021 BMW M340i. Under $34,920 puts you in the cheapest quarter of active US listings and under $29,516 in the cheapest 5%; above $48,932 is the priciest 5% (as of 2026-10-17).
What is the cheapest used 2021 BMW M340i for sale right now?
$27,995 — a 2021 BMW M340i Xdrive in Wanaque, NJ, $11,613 under the median (as of 2026-10-17).
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?
The listing data behind UnderMarket Cars is rebuilt from live US dealer inventory every few hours, and this used 2021 BMW M340i page is regenerated from it when it is requested. The figures on this page are from 2026-10-17.
Explore more
Prices updated 2026-10-17. Data covers active dealer listings across the USA.