Kit has insane durability. Bullet proof to the extent that bullets make no scratch or dent on it and bounces tf off. Even steel plate can't do that.
Withstand explosions and bust through solid brick walls from prisons and prison steels bars etc.
Kit will kill that Bear. And Michael will be completely invincible if Kit just sat there and let the bear do anything it wants.
K.I.T.T. easily. It's bulletproof and explosion-proof, can emit tear gas, has flamethrowers, and a literal laser beam that can punch through solid steel. So Cocaine Bear can't actually do anything to damage the car or get to Michael inside. While Michael can just kill it pretty quickly. The only way C-Bear can win is if Michael opens the door, stands there, and tells K.I.T.T to not intervene while the bear mauls him, because even if he gets out, K.I.T.T. will still kill the bear to keep him safe.