Metal, plastic , rubber , and nylon.
Pistons are car parts often made out of a metal like stainless steel. These pistons are meant to move under high friction and must be a metal that can withstand the heat. +++ They are usually made of aluminium-alloy.
In the past (quite a long time ago!) most car manufacturers actually made all the parts that went into the car, so they bought metal, plastic, wood, etc, and then made parts out of these materials, then made a car with the parts they had made. These days most car companies buy parts made by other companies, and then "assemble" the parts into a car. So they no longer "manufacture" a car, they "assemble" it.
Aluminum is a light metal and certain car parts need to weigh less in order to function properly.
foreign parts usually but then again almost anything you find is made in china.
The wheel is actually three parts. It is the metal rim, the rubber tire and the hub cap.
Certain car parts can be made by running molten metal into a mould formed in special sand. This process is were the term caste iron comes from.
Depends on the car; Some use plastic, others fiberglass, still others use sheet metal (aluminum or steel).
Cars are usually built using aluminum and steel which are metals. However fiberglass and is also used sometimes (this material is not metal).
all metal parts that are non ferrous
If an engine overheats the metal parts expand and the engine will seize up. A seized engine is usually unrepairable.
Yes, if the parts you are selling aren't damaged you can easily make some money off of them. If the parts are ruined, there are places that buy scrap metal for recycling.