Back seats don't fold flat?

[harda toenail]

Hey guys I have a 08 yaris with 60/40 split back seats. They side forward and fold completely flat and i can cover them with the plastic protector pieces.

My dad just bought a 07 with non 60/40 back seats. When he folds it down it doesn't come close to folding flat. And they don't slide up. Also the plastic pieces don't lay down on the seat well at all. He wanted to use it as a work car instead of driving his v10 cargo van. But he can't situate his toolbox in the back right because he can't get the flat surface.

Is this just something you have to live with in the non 60/40 yaris hatchbacks or is there a way to make it flatten? My mom's is a single back seat too but I never messed with folding it down.