What sends the e series and aus and bas to wreckers

Hi
everytime you go in to upullit (sa) or pick apart (vic or nsw) why there's a few efs els and aus there when they don't look like they got a lot wrong with them and body's aren't damaged starting to see a few ba and bf models too, what would send them (more so efs els and aus) there when they don't look like there's much wrong with them
What problems would the e series and aus and bas that aren't smashed have that aren't obvious to end up at a wrecker
everytime you go in to upullit (sa) or pick apart (vic or nsw) why there's a few efs els and aus there when they don't look like they got a lot wrong with them and body's aren't damaged starting to see a few ba and bf models too, what would send them (more so efs els and aus) there when they don't look like there's much wrong with them
What problems would the e series and aus and bas that aren't smashed have that aren't obvious to end up at a wrecker