Pretty sure its bush all the way to the roadside at that track isn't it?
I can imagine the car getting stuck on that stump, wavering around with the wheels spinning, but there is any number of combinations with car jumping as it hit the object. The stump would do that muffler damage.
The weird thing is, there is no damage to the lowest point which is the front bumper. With all the under side damage, you would think the front bumper have some damage either way.
It was only to point out someone had some pre thought into preventing attracting police with a smashed front end.
Either way, a footing wouldn't have done all the damage, and the car bog. What is with that? Someone has been rock crawling elsewhere. The steering frame has scratches like it has been on rocks or kerb?