BMW 645Ci Convertible Market Value & Price History
The BMW 645Ci Convertible has a market value of $12,959 to $13,600 depending on year and condition, based on 26 verified auction sales across 2 model years (2004–2005). Individual examples have sold from $10,000 to $36,000, with 3 sold in the past 12 months.
BMW 645Ci Convertible Value by Year
What members see for the BMW 645Ci Convertible
The value above is the headline. Members get the full picture behind it.
- All 26 sold prices across every year, and where each one sold
- The live Value Signal, and how confident it is
- A 1–5 year value projection
- A Buy / Hold / Sell call
- An alert the moment one lists or sells
- The best and worst months to buy and sell
- An estimated market-bottom date
- Whether a for-sale ask is fair, the moment one lists
- Deal Radar: underpriced listings across the market
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Recent BMW 645Ci Convertible Auction Results
| Sold | Year | Price | Mileage |
|---|---|---|---|
| Apr 9, 2026 | 2005 | $11,945 | 32,000 mi |
| Jan 22, 2026 | 2005 | $17,000 | 18,000 mi |
| Dec 30, 2025 | 2004 | $13,000 | 78,000 mi |
| Sep 2, 2025 | 2004 | $12,500 | 44,000 mi |
| Mar 12, 2025 | 2005 | $21,500 | 34,652 mi |
| Feb 27, 2025 | 2004 | $13,000 | 55,000 mi |
| Oct 31, 2024 | 2005 | $20,250 | 12,000 mi |
| Aug 29, 2024 | 2005 | $15,001 | 58,000 mi |
| May 18, 2024 | 2005 | $15,500 | 44,000 mi |
| Mar 13, 2024 | 2004 | $15,500 | 49,000 mi |
| Nov 16, 2023 | 2005 | $10,500 | 91,000 mi |
| Oct 9, 2023 | 2005 | $18,000 | 14,000 mi |
BMW 645Ci Convertible: Frequently Asked Questions
How much is a BMW 645Ci Convertible worth?
BMW 645Ci Convertible market values range from $12,959 to $13,600 depending on the model year, mileage, and condition. Recent auction sales span $10,000 to $36,000. See the year-by-year breakdown below.
Which BMW 645Ci Convertible year is best?
DriveIndex tracks the market value of every BMW 645Ci Convertible year (2004–2005), listed year by year on this page. Whether each year is appreciating, stable or depreciating is DriveIndex's Value Signal, a Pro feature, which also includes a 1–5 year projection.
How many BMW 645Ci Convertible sell per year?
3 BMW 645Ci Convertible have sold at auction in the past 12 months across all years; DriveIndex has tracked 26 sales in total.
Where can I buy a BMW 645Ci Convertible?
DriveIndex tracks for-sale listings and auction results for the BMW 645Ci Convertible from the top auction houses and marketplaces.