That an interesting impact as far as what it did and didn't do to the bronco. Definitely looks like it was the only vehicle involved, and I'm guessing it hit a tree at a high rate of speed. Mostly diameter and shape of the impact area, or possibly a power pole. Doesn't look like the doors were forced open by fire fighters either, no sign of blood on the seats, roof or windows from what I can see either. Strange accident for sure. The only wrecks I've ever worked that have looked like that were telephone poles and trees that I can remember.