There are a few problems with the TR-85M1 and M2 tanks.
First, their fire control system (which probably is the only good thing about this tank) includes thermal imaging according to ROMTEHNICA, the company in charge of the upgrades.
http://www.romtehnica.com.ro/ ( click upgrading programs )
The new turret of the TR-85M1 with its additional passive armour offers protection equivalent to around 580 mm KE (according to a romanian military magazine, but I find this a little dubious - your thoughts?) over the frontal arc of the turret. This might explain why the TR-85M1/M2 is so heavy. It weighs a little more than a T-90.
Finally, both the M1 and M2 don't have missile countermeasures. In version 2.5, the M2 has two ARENA shots.
The M2 has improved survivability due to redesigned ammunition stowage.