Invisible tanks would be hard to hit.
See though tank-tops on the other hand......
Not at all, not unless they also could 'camouflage' their heat signature. But that's already been done, too.
https://www.baesystems.com/en-us/feature/adativ-cloak-of-invisibility
To: gaijin
"Could somewhat ameliorate tank vulnerability in MOUT environments."
Not unless they also added weapons systems to cover the dead spots. Otherwise the only close-in defense they'd have is driving erratically to run over the enemy. Which, BTW, is why tankers refer to infantry as "crunchies."