Plastics play an important role in the automotive industry. Used for exterior parts like bumpers and interior parts like dashboards. They are lightweight, malleable, and some have good sound insulation. Special plastics can be used for key parts in engine compartments.

Reason: Plastics for exterior parts need impact resistance. Interior parts need malleability for aesthetics and comfort. Lightweight helps fuel efficiency. Some plastics are suitable for harsh engine compartment conditions.