Headlight door
the headlights are made from plastic
Plastic.
the lines are caused by the plastic covering
Remove that wide black plastic piece above the headlights. Then using a 4 mm socket you have to turn the screws with black plastic around them.
Plastic is sun damaged. Replace them.
you can buy a kit from most auto shops to take out the yellow and restore plastic headlights
Your Rib Cage protects your lungs.
There is a plastic protector thing in the front that protects your things
A helment is a shell of hard plastic that protects your brain from any injuries
You can find these headlights online, but aftermarket headlights still will cost you a pretty penny, if your grand prix has plastic headlights and it is just a matter of discoloration this could easily be fixed. Just go to the The Headlight Solution, at headlightsolution.net they specialize in restoring / cleaning headlights to like new condition.
You can buy just the plastic housing, but not just the clear plastic. The housing is sealed for waterproofing.