When your vehicle reaches a state where it cannot be driven anymore because of mechanical failure or because it has been in an accident, it may not be in a state where you can sell it to anyone else for money. Your best solution is to sell the vehicle to a junkyard for cash when that happens. When it comes to selling your vehicle to a junkyard for cash, the selling process is a little different.
You might have one junk vehicle or you might have several of them. Either way, if they are just sitting there, rotting away, you might as well try to get rid of them so your property value can be improved and so you can avoid any fines from the local government. Many towns and cities prohibit non-functioning vehicles to just linger around, even though it might be your own private property.