2005 Porsche 911 Resale Values
| Mileage | Trade-In-Value | Retail Value |
| Clean | Average | Rough | Excellent | Clean | Average | Rough |
| 1 - 18,000 | $59,575 | $56,588 | $46,897 | $67,902 | $66,040 | $61,821 | $55,475 |
| 18,001 - 25,000 | $59,475 | $56,488 | $46,897 | $67,802 | $65,940 | $61,721 | $55,475 |
| 25,001 - 30,000 | $59,375 | $56,388 | $46,897 | $67,627 | $65,840 | $61,621 | $55,475 |
| 30,001 - 40,000 | $59,200 | $56,288 | $46,897 | $67,377 | $65,665 | $61,521 | $55,475 |
| 40,001 - 50,000 | $58,950 | $56,113 | $46,897 | $66,527 | $65,415 | $61,346 | $55,475 |
| 50,001 - 60,000 | $58,000 | $55,863 | $46,897 | $65,577 | $64,465 | $61,096 | $55,475 |
| 60,001 - 70,000 | $57,125 | $54,888 | $46,897 | $64,727 | $63,590 | $60,121 | $55,475 |
| 70,001 - 85,000 | $56,250 | $53,963 | $45,797 | $63,977 | $62,715 | $59,196 | $54,375 |
| 85,001 - 100,000 | $55,575 | $53,113 | $44,847 | $67,377 | $62,040 | $58,346 | $53,425 |
| 100,001 - 115,000 | $54,925 | $52,438 | $44,172 | $67,377 | $61,390 | $57,671 | $52,750 |
| 115,001 - 130,000 | $58,950 | $51,838 | $43,497 | $67,377 | $65,415 | $57,071 | $52,075 |
| 130,001 - 999,999 | $58,950 | $51,288 | $42,897 | $67,377 | $65,415 | $56,521 | $51,475 |
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