Back in the '80s my father did call-out work for the police towing away cars at scenes of accidents (he was a mechanic). He used to come home with the most grisly stories often involving moving objects in cars like here or stationary objects outside of cars like trees. I suppose he had to tell somebody what he saw and his only audience was me and my sister aged 10 & 8 - at that age you don't forget horror stories.