some might be suprised when they 1st know about corrugated paperboard used as automotive material, its can be found in many low end models mainly for interial purposes.

1. your sunvisor is made of corrugated paperboard taped to a piece wire frame, before wraped by pvc sleeve.
2. certain portion of the roof and boot is glued with the same material not only as sound absorbent but primarily as a filler agent between "headlining-and-panel" or "carpet-and-panel" in preventing the flapping noise.
3. you can find the corrugated plasticboard in 1st gen vios, where it seperates the rear seats with the car boot.
etc..

This post has been edited by yamato: Nov 17 2015, 05:24 PM