With garage door opening probably the fault of the driver. With a closing door driver could be not at fault if someone closed it on top of car. But opening should be seen by driver. Like running into a closed door that's not moving. Unless someone told the driver it was open and it wasn't and so the driver hit it backing out. Or it was open then someone else closed it and started to open it again.
It varies by country and/or state. In most areas, the person opening the door is liable for any damage.
The hinges on a garage door can rust, making opening the garage door difficult. Lubricating the hinge joints can keep the door moving smoothly and quickly, and can keep the joints from rusting together. If your garage door has sensors, and they become misaligned, the door will have trouble opening and closing.
32" is typical.
It would be YOUR fault UNLESS you can prove there is a manufacturing defect in the door. How you can prove that, I don't know.
Any opening in your home. ie- window frame and rough opening (use minimal expanding foam to not damage window) soffit area of roof, garage door opening, basement opening for HVAC etc...
Linear garage door openers are used for opening a garage door in a wireless manner. They use a light beam and receiver to allow one to open the door without physically touching it.
You can't - the door you have is one foot too narrow. Take the door back and get one that will fit.
The garage door track's slider is attached to the door with a pair or adjustable arms, and the door is set on guide rails that use pulley wheels. Many garage doors are able to be opened with a remote control.
Most likely it will be considered your fault.
Opening a door into traffic makes the door opener at fault. If the door is opened safely and some driver then runs into it, the moving driver is at fault.
To seal a garage door from the weather you need to call or hire a service to make your garage door safe from the weather to avoid damage from cold and the best way to keep the cold weather from coming in the garage door would be closing all the air possibilities.