Heres a thought, We all sling things into pickups but I tried to carry a produce crate full of oranges on the passenger seat of a pickup so the interior filled with oranges in a roll over, much like someome might do if the bed was full. Things do fall through the bed, but the crate fell straight through and onto the ground. Is it possible at any point to make it possible to put these objects into the inside of a car?
The interior of the cars do not have collision triangles as I can recall - though it's not impossible to add them, B25Mitch did it when he made the Stig for the D15