THE MARKET· NOV 6, 2026· 1 IN KNOWN
2017 BMW 440i xDrive
~$21,348
−$7,277 (−25.4%) past year· few sales
What sellers are asking, 15 listed now, as of Nov 6, 2026. Recent sales around $35,750 are few and scattered, so they do not count.
Tested on 921 listings Known had not seen: half asked within 9% of a number like this one, and 8 in 10 within 20%.
$21,348, −$7,277 past year
Sales
2 past year· 5 on file
| Sold | Car | Miles | Price | |
|---|---|---|---|---|
 | Jul 2026 | 39k-Mile 2019 BMW 440i xDrive Coupe M Sport 6-Speed | 39,000 mi | $35,750 |
 | Jun 2026 | 2018 BMW 440i xDrive Coupe M Sport 6-Speed | $27,250 |
Asking now
15 listed, low to high
| Asking | Year | Car | Miles | ||
|---|---|---|---|---|---|
 | $15,345 | 2017 | 2017 BMW 4 Series 440i xDrive Gran Coupe | 146,802 mi | |
 | $16,694 | 2017 | 2017 BMW 4 Series 440i xDrive Coupe | 132,892 mi | |
 | $19,008 | 2017 | 2017 BMW 4 Series 440i xDrive Coupe | 92,700 mi | |
 | $19,080 | 2017 | 2017 BMW 4 Series 440i xDrive Gran Coupe | 99,354 mi | |
 | $19,903 | 2017 | 2017 BMW 4 Series 440i xDrive Gran Coupe | 86,378 mi | |
 | $19,999 | 2017 | 2017 BMW 4 Series 440i xDrive Coupe | 89,555 mi | |
 | $20,279 | 2017 | 2017 BMW 4 Series 440i xDrive Convertible | 72,723 mi | |
 | $21,348 | 2017 | 2017 BMW 4 Series 440i xDrive Convertible | 91,648 mi | |
 | $24,554 | 2017 | 2017 BMW 4 Series 440i xDrive Gran Coupe | 57,407 mi | |
 | $25,187 | 2017 | 2017 BMW 4 Series 440i xDrive Coupe | 87,457 mi |
How this number is made
Real sales and real asking prices from many sources, auction results and dealer and private listings, matched to this car by year, trim and body. Sales are one side of the market, what buyers paid; asks are the other, what sellers want now. When both sides stand on enough evidence the number is the mid between them, the way a market quotes itself. When one side is thin the other leads, and it says so. Sales from the car's own model year count first, older years only when its own year is thin, never another generation. Too few sales means no number. The line is what the number was each week, from every sale on file, and it ends at today's.
Known tests its own numbers. It hides each recent sale and listing in turn, prices that car from the rest of the market as it stood, and compares the result with the real price. The line under the number above is what that test found for numbers like this one.