We spoke about my task of dismantling the car seat and what my findings were. The main body is a two piece injection mould. Not as much padding or components involved as I would have expected. The seat had a polystyrene padding mould positioned at the top of the car seat. From my analysis the car seat heavily relies on the cover containing a type of foam.
Mira, crash testing company I need to get in contact with to gain some information about where the specifically the pressure/ stress points would be.