Rust
As for the door of the driver side, although I cannot see any rust bubbles, I can feel the paint is rough at the bottom (very small area). So, the rust has started on this side as well but not as bad as the passenger side, no sign of rust from the inside.
I am deciding if I should go fix both doors. Although I love this car, I have no idea how long can I hold on to this car. Do you guys have rust on your cars?
This is the one I use:







