Are ghost crashes real?
I would say no. I watched some of those crashes and it could very easily be faked. Plus I think, if it were a phenomenon with any merit, I would have heard about it before now. I had to look it up. How would police explain it? How would insurance even begin to try to cover it. Health insurance also. If it is real, no one talks about it. I say fake.
Just seen some videos of such crashes. To me they look like CGI/video animation products.
If by any chance they are real, the offending vehicles from different time/space dimension may have chanced to meet at the right time their energised state converted into matter.