to use to get at parts. I changed out the headlamp on a Mazda CX-7. That was a pain in the derriere because the angle was nigh impossible. Don't even let me work on electronics.
My SiL has taken apart his 2003 Audi, every single piece. I have seen the entire engine block with all attachments removed, the automatic gear box dissembled and loads of other parts I don't know what they do. I wouldn't even hazard an attempt at that.