How much is a 1999 Mercedes-Benz SL500?

Based on the current 1999 Mercedes-Benz SL500 listings for sale on Classics on Autotrader, you may find some that cost as low as $12,895 and max out around $29,900. While the average price of a 1999 Mercedes-Benz SL500 is around $19,768, take a look at all the features, the vehicle's condition, and mileage to find the best deal.