-
EDIT - @christianSpaceman beat me too it and did a better explanation.
Even without the headrests.
My old mark 4 you used to flip the seat cushions up and forward and then the backrests would fold down in to that space. In the Mk7 the cushion part stays in place and the seats fold to the top and have an angle to them. At the bottom of the back part of the seats there is a lip to the boot floor. (Apologies for possibly confusing explanation)
Even without the headrests?