It's the Stig!
"In the front seat was a dummy wearing a SpaceX-designed spacesuit, at least that's what we're told. Some have speculated this is a foolproof way to dump a dead body."
White fireproof overalls, white helmet, dark visor ... some say he can breathe in outer sapce, some say he comes from mars ... we only know he is the Stig.
.... seems unlikely given their space rivalry but has Belos got Musk to dispose of the one bit of TopGear he couldn't buy as a warning to the BBC?