According to the backinfo I got, this happened in Turkey.
The video shows the aftermath of an accident which appears to have involved a motorcycle and a van. There are at least three dead people on the road, some quite shredded. At least one was ripped in half. I think the upper part of the bottom that is next to the two whole corpses is what’s shown near the curb later in the video.
It’s amazing to think that the motorcycle may have butchered the van and its passengers.
Props to Best Gore member @momox for the video: