The right rear passenger seat belt buckle fell apart when attempting to buckle up. All the cheap plastic parts of the buckle dislodged and fell on the floor. Now that seat is useless until we get it fixed. I have never seen a belt buckle come apart and with all the other problems we have with this car, like the doors not closing. I'm really wondering how this thing was put together and what quality of materials Mazda use to build their cars? Feels like we own a dollar store toy car...