2005 BMW 645Ci Convertible Market Value & Price History
The 2005 BMW 645Ci Convertible has a current market value of $13,600 as of Oct 9, 2026, based on 17 verified auction sales tracked by DriveIndex, with half of the verified USD sales since 2021 between $15,001 and $22,651. Based on US sales through Apr 9, 2026. 2 have sold in the past 12 months.
Data: DriveIndex. 17 verified auction sales for the 2005 BMW 645Ci Convertible, latest sale Apr 9, 2026. Value as of Oct 9, 2026. Methodology
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The median 2005 BMW 645Ci Convertible sold for $15,500 in 2024, against $26,000 in 2021. Each row is the median of the verified sales recorded in that calendar year, so it moves with the mix of mileages and options that came to market as well as with the market itself.
| Year | Median sale | Sales |
|---|---|---|
| 2024 | $15,500 | 3 |
| 2023 | $19,000 | 6 |
| 2021 | $26,000 | 3 |
Years with fewer than three verified USD sales are omitted — a one-sale “median” is a single car, not a market.
Recent 2005 BMW 645Ci Convertible Auction Results
| Sold | Price | Mileage | Gearbox |
|---|---|---|---|
| Apr 9, 2026 | $11,945 | 32,000 mi | Automatic |
| Jan 22, 2026 | $17,000 | 18,000 mi | Automatic |
| Mar 12, 2025 | $21,500 | 34,652 mi | Automatic |
| Oct 31, 2024 | $20,250 | 12,000 mi | Automatic |
| Aug 29, 2024 | $15,001 | 58,000 mi | — |
| May 18, 2024 | $15,500 | 44,000 mi | Automatic |
| Nov 16, 2023 | $10,500 | 91,000 mi | Manual |
| Oct 9, 2023 | $18,000 | 14,000 mi | Automatic |
| Sep 6, 2023 | $13,500 | 46,000 mi | Automatic |
| Jun 5, 2023 | $20,000 | 6,000 mi | Automatic |
| May 7, 2023 | $23,000 | 28,000 mi | Automatic |
| Feb 21, 2023 | $22,651 | 32,000 mi | Automatic |
| Dec 13, 2022 | $15,000 | 38,000 mi | Automatic |
| Nov 7, 2022 | $20,000 | 11,000 mi | Automatic |
| Nov 24, 2021 | $25,250 | 51,000 mi | Manual |
Verified results from the world's leading collector-car auction houses and marketplaces.
All BMW 645Ci Convertible auction results →See the full picture on the 2005 BMW 645Ci Convertible
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BMW 645Ci Convertible by Year
2005 BMW 645Ci Convertible: Frequently Asked Questions
How much is a 2005 BMW 645Ci Convertible worth?
A 2005 BMW 645Ci Convertible is worth approximately $13,600 as of Oct 9, 2026, based on 17 verified auction sales tracked by DriveIndex. Based on US sales through Apr 9, 2026. Half of all verified sales fall between $15,001 and $22,651; the full verified range is $10,500 to $36,000. Condition, mileage and options move an individual car within that band.
How many 2005 BMW 645Ci Convertible sell per year?
2 have sold at auction in the past 12 months. DriveIndex has tracked 17 2005 BMW 645Ci Convertible sales in total.
Are 2005 BMW 645Ci Convertible sale prices higher or lower than a year ago?
There aren't yet enough recent sales to compute a reliable 12-month price direction for the 2005 BMW 645Ci Convertible. The full Value Signal classification (appreciating, stable, bottomed, or depreciating) and its 1–5 year projection are part of DriveIndex Pro.
Where can I buy a 2005 BMW 645Ci Convertible?
DriveIndex tracks for-sale listings and auction results for the 2005 BMW 645Ci Convertible from the world's leading collector-car auction houses and marketplaces.
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