Abstract: Ultimate Auto Sunshade with an a rectangular or custom fit shape screen portion to various size and shaped automobile windows, loop fastening strips sewn to the top, front and rear side of the screen portion, adhesive hook fastening strips that adhere to the interior of the automobile's rear side door. A preferred embodiment includes the loop fastening strips attaching to the hooks at the top, front and rear side of an automobile door around the inside of the door window, thereby enclosing the window and tightly sealing the invention on three sides when the door is closed, thereby creating shade for the occupant of the automobile even when the window is in an open state.