United States · verified auction sales
1999 Mercedes-Benz SL (R129) value.
The median 1999 SL sold for US$22,500 across 9 verified United States auction sales. That’s a +18% premiumvs the model’s all-years median.
1999 SL sales
| Sold | Lot | Price | Mileage |
|---|---|---|---|
| 2 Aug 2026 | 1999 Mercedes-Benz SL500 | US$14,750 | — |
| 28 Jul 2026 | 1999 Mercedes-Benz SL500 | US$9,500 | — |
| 20 Jul 2026 | 1999 Mercedes-Benz SL500 | US$26,300 | 60,000 |
| 9 Jul 2026 | 1999 Mercedes-Benz SL500 | US$19,000 | 60,000 |
| 16 May 2026 | 1999 Mercedes-Benz SL500 | US$22,500 | 50,000 |
| 6 May 2026 | 32k-Mile 1999 Mercedes-Benz SL500 | US$29,000 | 32,000 |
| 21 Apr 2026 | 11k-Mile 1999 Mercedes-Benz SL500 | US$40,250 | 11,000 |
| 19 Apr 2026 | 1999 Mercedes-Benz SL500 | US$14,500 | 77,000 |
| 14 Apr 2026 | 33k-Mile 1999 Mercedes-Benz SL500 | US$24,500 | 33,000 |
Indicative only — not investment advice. Past performance is not a reliable indicator of future value.