A car has a soul. Not only is it part of it's owner, but alone, it is still an entity within itself.

It is capable of movement, sound, destruction, death. 

Even has it eyes, arms, feet. It blinks and breathes.

You know it better than anyone else does, and it you. 

When abandoned, it becomes weak. Paralyzed. The way one appears after his wife has left, taken the kid, and written a note saying "I couldn't do it" and left it on the kitchen table.