TYPE-59, upgrade with Romor B passive armor + Romor A ERA, 105mm L7 and the Centaur FCS (feat. digital computer and laser rangefinder) , dont remember the country of origine tho
Top one is fake unfortunately. We don’t need it that much to be honest.
Second one looks like a M247 turret on a Centurion, I can’t remember what turret it exactly is and I’m to tired to look.
Last one is some weird prototype that I think mounted a GAU-8 on an M60. This was easier to find, it’s just a M247 with a GAU-8
The C2 Ariete upgrade could be called the C3 Ariete
C3 Ariete will have modification to turret for APU installation, better turret ammunition storage and hard-kill APS.
Italian Army is interested in the C3 Ariete variant but budget is the issue, especially after the Leopard 2 acquisition deal.