I remember a mate of mine running over, correction, into a Wombat once. It wrote his car off! Wombats are hard as nails! Their form of defence against preditors is to dig themselves into the ground with powereful clawed feet, and leave their back exposed. The muscles on their backs are like rock and can't be hurt. So when a wombat gets caught in the headlights of a car, he digs his claws into the tarmac and stands stockstill. It's like hitting a rock thats stands about a foot and a half high!