Originally Posted by GregW / Oregon
The EDC is not techinically part of the ZTP package, since it is available standalone. However, it has two active shock settings, which cars without EDC do not have. "Normal" is roughly equivalent to the base car suspension in firmness. "Comfort" is softer but still controlled (not floaty at all). "Sport" is stiffer than stock and best only on very smooth roads or track. Again, the active dampers and additional stiff setting are in no way detuning the car.
Could be, I certainly don't claim to be an expert but that's not how it was described to me by dealership. They explained it as cars without EDC are always in "Sport" and EDC only lets you soften the ride.