The Mercedes SL class is perhaps the sportiest series of luxury cars in the world. A symbol of wealth and opulence, the SL demands respect when it is seen on the road. the SL500 has a base price of $79,900 and comes with a V-8 and convertible top. The SL600 starts at $125,000, is also convertible of course, and sports a powerful V-12 engine. What could signify the top of the heap better than this luxurious, convertible roadster?