I'm the second owner of the car. I know its not for offroad stuff like rock climbing but it has seen a dirt road or two. I always go slow on them. According to the dealership the previous owner was a doctor's wife so maybe she took it rock climbing lol...
I have a suspicion something happened to it at the mechanic I was told to take it to (he's the only one in my town that does BMW) because some of the plastic under panels have cracks and I have never applied enough force to crack them. The problem also started right after I got it back from him.
As for a collision, I'm not sure but the CarFax is clean. How fast would you have to hit something to make these break?