If you are looking to scrap a car with your local scrap yard be sure to contact your scrap yard and ask them about the different classifications they have for cars and auto scrap. Some yards will ask if you have a complete or an incomplete car for scrap. A complete car will have all of the part components still intact in the car like the radiator, battery, catalytic converter, motor, transmission, wheels, and tires. An incomplete car will be missing at least one of these parts and will be priced differently per yard.
Usually the incomplete cars will be priced a bit lower in scrap due to the value of the parts missing from the car. If you are bring your vehicle to a salvage yard, the value of the car drops due to the lack of parts with the incomplete car. Also remember you will be required to have your title for the vehicle when you are scrapping it. If you are removing the parts yourself like the catalytic converter, the assumption would be to make some extra cash on the side for the parts.
Some parts of a car can be more valuable to resell and reuse rather than just destroy for scrap metal. If you are reselling parts at a salvage yard or third party company, be sure to do the right research on the materials so you can make the most money from it. Incomplete cars are sometimes difficult to sell unless you are selling to a scrap yard that has the ability to pick them up as well.