As a reply to the topic of whether things have "hit points" in this game, both cases are partly true.
Points of failure (anything that shows up on your damaged parts listing) have "hit points" and will fail after enough collective damage is done to them. Armor, however, does not fail and thus does not have "hit points." Armor is always the same strength, and every shot put into it is a binary "did it penetrate? Yes/No" question. So, if you're firing at a tank from above (ignoring splash damage off near-misses hitting the ground) with guns that can't penetrate the armor, you won't do any damage to the tracks. Firing side-on to where your rounds don't interact with the armor will result in damage accumulating and eventually destroying the track.
There actually was an issue before where the tracks were far too strong and people could run around strafing tracks with cannon-heavy planes to steal kills when the tanks were actually destroyed. The "strength" of the tracks has been reduced since then, though I still think it's a bit much. Another good question is whether the road wheels and track itself are separate (and when either fails, the track is destroyed), or whether the whole mechanism has one "hitpoint pool."
