Just to informe you, there will be no m3 csl of the current m3 version.
Officialy dinied by bmw. But an m3 competition witch is not comparable to the csl version of the m3 e46.
There were aswell 2 types of m6 csl test versions (prototypes) with aproximatly 600 hp witch are already destroyed and therefore wont be any version of an m6 csl in the next years.