500SL and 2D Convertible. Won't last long! Perfect Color Combination! Are you looking for a great value in a vehicle? Well, with this wonderful 2005 Mercedes-Benz SL-Class, you are going to get it.. It's the ultimate combination of high performance and luxury. J.D. Power and Associates gave the 2005 SL-Class 5 out of 5 Power Circles for Overall Initial Quality.