Base model mirror is a smaller glass fixed in a swiveling chromed dish/back. Left and right the same, non remote. Rally mirror is a swiveling glass in a fixed position chrome bowl. Left and right specific. Drivers is remote control. Passengers is not. Bowl is deeper on outer side of passengers mirror because the edge of glass sticks out farther. I have seen the left rally mirror on a right door. It tilts inward toward the door, don't look right. I imagine adjusting it for a view would have the glass sticking out catching wind too.
