The CZ75 "B", which is the normal CZ75 modell is more of a carrie/duty firearm. Also hunters here in germany like to carry the CZ75.
The SP-01 is based on the CZ75, only that it`s concept is adapted to modern duty sidearms in police and military.
The derivates of the SP-01, like the Shadow Viper oder Shadow Mamba are the production competition race guns.
The Sp-01 is an overall more modern pistol to match the new demands of any police or military force.
They also produced a version of the SP-01 with a polymer frame, the SP-01 Phantom.
But all in all, the CZ75 is always based on the classic CZ75 technology, that has worked flawlessly for decades now.
Pistols CZ - Ceska zbrojovka