The Jets can touch the ground going over 200MPH and it wont get hurt aslong as the nose doesn't hit something
When one tank bumps into another one goes flying and if the tank is upside down and lands on the turret or on its roof it will slide to anyside and keep going until it flips back over by hitting something
(only tried this with the M2A1)
Fly the jet find flat ground go over 200 and go down and let the bottom of the jet touch the ground it wont blow up sometimes you will die
get two tanks ram the one into the other and you will flip or even fly across the map or end up having your tank slide when its on its roof
just tested the tank one, confirmed /upvoted.... also only seems to happen from a front on front collision