It wouldn't sell well in the first place and there is more to adding a 5.5-l V8 under the hood of the CLC. You'd have to invest money into suspension engineering and tuning, perhaps a new cooling system that will fit under the hood of the CLC etc.

Mercedes offered a limited number of C32 AMG Sportcoupes on an on-order-only basis. Needless to say very few were ordered and produced because there simply isn't a profitable market for this kind of car. Why not simply go for a C32 AMG sedan or estate in the first place? Same performance and more interior space and practicality.