All of these metals are difficult to sort and separate to sell as is, and that is why scrap yards buy the cars whole. Some scrap yards will require you to have the oil, Freon, gas, and other liquids drained ahead of time, so make sure to call and ask.
When you sell you car or truck to a scrap yard you can expect to get one flat price per pound or per ton for the entire vehicle. You will not get paid for the individual parts inside of it.
Scrap ya later!