Rescue centers usually store old cars and old auto parts, although some rescue depots have other items. Does everyone wonder what happened to the old car? Well, old cars that stop moving and have no hope of moving again usually head to one of the many rescue depots in the United States. There they are separated from any parts that can be sold for reuse, then shredded and the metal recycled. You can 'find boat salvage yards near me' as per your requirement to search for the old parts.
You have very little overhead; Usually, an office is a trailer or small building. Many cars are there for free. In some cases, a fee is charged to deliver to the farm.
They sell some stuff:
Batteries, tires, body parts, engine parts, electronics parts, radios, speakers, internal parts, external parts, almost all parts that can be removed from a car. Many of them require you to remove the car parts yourself. It also reduces yard overhead because you don't have to pay anyone for it.
Some are more organized than others and parts are removed from the vehicle and placed on shelves for easier location. Many today have computerized systems that keep track of exactly what they have in stock and even list items online. This practice is the exception and definitely not the rule. Most of the rescue centers look exactly as pictured, clogged with vehicles, dirty and unkempt.