2 things to input here. #1, auto kick would be terrible for anything on a planet. Forget skid racing on saber world, or robot wrestling. Collisions happen, deal with it.
#2, trolls can be dealt with. Troll taps are easy to make. Covering a ship in area triggers will lag him out bad when he tries to ram it. Also having logic activated traps, swarmers, etc, when he rams it on trap ships all over the starting areas will quickly teach many trolls that ramming is a bad idea.