Hybrid battery surround/rear cargo floor:
Not hard to remove, you will need a 10mm socket to remove the folding cargo anchors.
Remove the rear hatch scuff plate. It's secured with white Christmas tree fasteners, pulls straight up.
Remove the rear, side covers and trays. Battery side top tray is secured by 2 tabs, lower tray with Christmas tree fasteners, both pull straight up.
Remove rear cover and tray. Secured with white Christmas tree fasteners, pulls straight up.
Remove the front cargo hold downs. With the metal square opened to the fullest, Insert a plastic trim tool at the base of the metal square and pry up the plastic cover (hinges to the rear) and remove the 10mm bolt. The rest of the platform is secured by white Christmas tree fasteners, pulls straight up.
Remove the passenger side, front trim cover (2nd row seats folded forward) then remove the plastic nut securing the trim to the floor. Repeat for the driver's side. The front, lower area is secured by white Christmas tree fasteners, pulls straight up. The rear lip is secured by yellow Christmas tree fasteners, pulls straight forward (fasteners stay secured to the frame).