According to the second picture, it is highly likely that it is an experimental vehicle equipped with a laser suppression system, the LSS are already used in ZTZ99(A) Baranykov said that they were thinking about how to model it when ZTZ99 added into the game but its still not been modeled in the game
Unknown SPG/Light tank, perhaps just another training vehicle. Appears to be constructed on some sort of utility tractor rather than the SU-76M.
M3 Scout Car or M3 Half-Track with Type 41 mountain gun
T-34-85 turret on M42 Duster hull. Some say it is actually the Type 64 prototype with an M18 turret, but I am not so sure
who knows the relevant information about this vehicle?
It looks like it has an oval turret, but uses a very thin main gun. It is not 62/WZ131/132. what is it?
The third image does not show armored cars of Chinese manufacture, but Japanese. They are Sumida P cars upgraded by the Japanese Dōwa automotive company based in Manchukuo China.
There is an old forum suggestion regarding this vehicle.