The Audi A4 trunk, better known as the Audi A4 hatch portion is given a position on the rear portion of a car and plays the function of allowing access to the cargo area. The Audi A4 carbon fiber hatch makes room for tail lights and at times also shows the inability to do this courtesy its heaviness. The Audi A4 carbon fiber trunk often ends up getting replaced with a potentially much lighter Audi A4 lightweight hatch in motor vehicles. The Audi A4 lightweight trunk is heavily utilized in factories and also in the form of mounting points. The preferred material to prepare the Audi A4 fiberglass hatch is fiberglass with its main function being that of venting air. Dust control is a purpose for which the Audi A4 racing hatch is used with the other function being the loading of dry materials.