It is likely that the average person could not notice the difference in suspension or EDC/MDM factory modifications.
However, the ZCP wheels themselves IMO are the most important part of the equation. They are lighter and stronger than the 19" pre-ZCP wheel. Also, they look so good that you don't need aftermarket wheels.
Additionally, if you look at the preowned E46 private party market and compare 06 ZCP vs. non there is a definite value added.
I personally think that M should have added some colors and made them ZCP specific like Interlagos was with the E46.