The average asking price for a used 2015 BMW 6 Series is $18,355, with 85,565 miles on average, across 87 cars for sale at U.S. dealers as of Nov 10, 2026.
Used and certified cars for sale at US dealers, each car counted once. Days listed are the dealer’s own days on market where they publish it. Price moves compare the same cars at both ends of the window.
| 80,224 |
| 20 |
| 2006 | $12,830 | 66,538 | 11 |
| 2005 | $10,473 | 83,952 | 29 |
| 2004 | $10,253 | 90,750 | 12 |
| 1989 | $29,217 | 133,339 | 3 |
| 1988 | $18,916 | 130,894 | 3 |
| 1987 | $37,728 | 106,499 | 3 |
| 1986 | $26,907 | 87,781 | 4 |
| 1985 | $85,248 | 142,459 | 2 |
| 1984 | $17,858 | 157,168 | 9 |
| 1983 | $18,995 | 86,325 | 2 |
| 1982 | $11,890 | 37,268 | 2 |
| 1981 | $8,495 | — | 2 |
| 1980 | $25,000 | — | 1 |
