I'm planning to buy a SL, after driving my brother friend 500. I realized how many girls look at me because I'm only 19 and driving an SL. Well, I drove Mercedes Benz all my life because all my family od is own Benz. Well, I'm looking into these two model, and can someone tell me the difference between each years for both models. I went to a dealer, and saw an SL500 with 50k miles for around $24,000. Is that a good or bad deal? Also, I took a test ride in the 600 and all I have is one word "Fabulous"! So, I'm planning to look for older models because they're cheaper. Any ideas or anyone selling theirs for under $30,000?