Live US dealer listings Median-priced benchmark Updated 2026-07-19
Cheapest · Used 2018 BMW M550i Rank #1 / 72 listings

Cheapest Used 2018 BMW M550i for Sale in the US

The cheapest used 2018 BMW M550i in the US today costs $17,120 — a 2018 Xdrive located in Somerville, NJ. We track 72 active listings; the median price is $26,878, so the top deal is $9,758 under the median.

Browse by model year

cheapest per year

Top 10 cheapest listings

ranked by price
  1. 2018 BMW M550i
    $17,120
    2018 BMW M550i Xdrive
    127,698 mi · Somerville, NJ · Yosh Motors of Somerville
    View listing →
  2. 2018 BMW M550i
    $18,995
    2018 BMW M550i Xdrive
    94,536 mi · Milwaukie, OR · Lot 99
    View listing →
  3. 2018 BMW M550i
    $19,212
    2018 BMW M550i Xdrive
    118,747 mi · Bend, OR · Auto Kings
    View listing →
  4. 2018 BMW M550i
    $19,763
    2018 BMW M550i Xdrive
    107,131 mi · Plano, TX · Gulliver Auto Group
    View listing →
  5. 2018 BMW M550i
    $20,880
    2018 BMW M550i Xdrive
    87,990 mi · Franklin Square, NY · United Motorcars 1 Incorporated
    View listing →
  6. $21,200
    2018 BMW M550i Xdrive
    92,257 mi · Fredericksburg, VA · Prime Galleria
    View listing →
  7. 2018 BMW M550i
    $21,495
    2018 BMW M550i Xdrive
    102,923 mi · Dover, DE · Delaware Auto Mall
    View listing →
  8. 2018 BMW M550i
    $21,600
    2018 BMW M550i Xdrive
    112,074 mi · Cottage Grove, WI · Graham's Auto & Truck Clinic
    View listing →
  9. 2018 BMW M550i
    $21,775
    2018 BMW M550i Xdrive
    133,853 mi · Crestwood, IL · Adam Auto Group
    View listing →
  10. 2018 BMW M550i
    $21,900
    2018 BMW M550i Xdrive
    106,626 mi · Honolulu, HI · Auto Galaxy Hawaii
    View listing →

FAQ

How much does the cheapest used 2018 BMW M550i cost?

$17,120 — a 2018 Xdrive in Somerville, NJ (as of 2026-07-19).

What is the median price of a used 2018 BMW M550i?

$26,878 across 72 US dealer active listings.

How often are prices updated?

Listings and prices refresh continuously; this page is re-generated at least twice a day.

Explore more

Search with map & filters

Prices updated 2026-07-19. Data covers active dealer listings across the USA.