PetEvo Car Door Protector -... https://www.amazon.com/dp/B07XY8WPFX?ref=ppx_pop_mob_ap_share

Meadowlark Premium Hammock Dog... https://www.amazon.com/dp/B072DTRKBN?ref=ppx_pop_mob_ap_share

I have both of these for my two dogs. Works GREAT and prevents them from scratching the plastic on the door panels

They also fit in the storage bins under the rear seat for when you have people back there