An attempt to minimize personal injuries during accidents.
Vacuum forming uses ABS plastic sheet, I believe this is what dashboards are made from
This may not be true for all makes of cars, but some basic dashboards are made using the process of injection molding in which the entire dashboard is molded in one piece. The lights, radio, glove compartment, etc. are added at the factory producing the vehicle.
The same material as your car or mine.
airbags, cushioning, seatbelts and padded dashboards
Polypropylene
It will be made of many components the casing material will not matter much.
Sheet Steel
A car chassis is made of heavy boxed steel, stamped steel or aluminum.
Safety glass, same as your car or mine.
Usually steel.
yes