the T71 light tank is getting reworked heavily on supertest to be more historical. Check this out:
As you can see, the suspension is very different.from the one on the regular server. That's because the T71 we currently have in the game is incorrect. You see, there were two T71 tank proposals - one by Detroit Aresenal, one by Cadillac. The thing we have in the game is a hybrid - it has a Cadillac hull (and suspension) and Detroit turret. In HD, the vehicle is getting converted into the Detroit model as a whole.
Other vehicles coming in HD soon are: T110E5, Leopard PT A, JagdTiger and JagdPz IV