These are some of what i call CZ 75 Variants. This is due to using the same internal trigger system. This is generally the same trigger system that was used in the orignal CZ75.
CZ P-01: Alloy frame, Steel slide, Compact, Decocker, Classic trigger system.
CZ SP-01: Steel frame, Steel slide, Full size, Safety model, Classic trigger system..
CZ P Series
CZ P-07: Poly frame, Steel Slide, Compact, Convertible Decocker/Safety model, Omega Trigger System.
CZ P-09: Poly frame, Steel Slide, Full size, Convertible Decocker/Safety model, Omega Trigger System.
Then you have the new P-10 models. These are poly framed striker fired pistols. Kinda like a Glock.
They all have "P" in the names. CZ naming can be confusing. There are also some exceptions to what i have posted, CZ is know to do special models for certain contracts.