Those cars are rally expensive. I found out about the list of most expensive cars in the world and I gotta say when you compare price and features and power Sc300/400 cars are really expensive. Here's the list: Most expensive car in the world
I must say I am myself kinda crazy about fast cars and I'm always looking on internet for fast cars and new stuff. So I gotta say I found everything about fast cars on this site and I hope it will help you The fastest car in the world