I couldnt see buying a C63 AMG after the Top Gear review. I do believe that each car is built for a particular type of person in mind. If you think that a C63 AMG is right for you then you should look at an IS-F as well.
Me I waited over 1 year for my M3 and I dont regret it at all. Then again I was driving a 335i coupe while I waited