A Mercedes-Benz SL 600 averages €57,250 across all model years. Right now 4 are listed for sale, with the cheapest sitting around €36,500 (typically older years) and the priciest around €119,500 (recent years). The median is €36,500. A good price for a Mercedes-Benz SL 600 is under €36,500; anything over €57,250 is on the high side compared with similar listings. Selling to a dealer instead of privately usually means a lower price: expect roughly €27,375 to €32,850 for this model, depending on year and condition.