My 1970 Challenger lacks some parts. One thing it doesn't has, is the trunk divider panel and it's padding. (There was just a hole behind the rear seat.)

Does someone has a pic that shows how this panel looks and how it is built in the car?

Is it in front of the two tilted body support bars? how is it fixed? Is the padding in front of that panel or on the trunk side? Is there any additional shield against the trunk, like any kind of plastic foil?

It is just a black cardboard cut to fit between the rear seat back and the body of the car. They are precut to fit. REM sells them. It mounts onto the same hooks as the seat back.

Origonally there was no insulation there either. You can add some between the seat back and the cardboard if you want.