So how does that work with all the bikes attached to that van? Are they magnetic? I don't see any tie downs. Or did they just start hooking at the top roof rack hanging one to another linking them all together? Like the handle bars and the pedals and the spokes all interlocking? Kind of what I try not to do when I have a big haul! I'm sure that since this is the 30th anniversary of Pac Man, this was a kind of a tribute to the van being eatin by the evil gang of insane clown bicycles.