Abstract: The present disclosure relates to an opening panel of a motor vehicle, comprising: an inner panel, preferably made of plastic; an outer skin, at least partially made of plastic, mounted on the inner panel, and comprising an inner surface facing an outer surface of the inner panel; and an equipment supporting plate covered by the outer skin and mounted directly on the outer surface of the inner panel, said plate being disposed inside an internal volume delimited by the outer surface of the inner panel and by the inner surface of the outer skin.

Abstract: An elongate element is formed from a composite material and a coil is formed by winding the elongate element around a master model. The master model provides the coil with the general shape of a continuous ring and with dimensions that allow the resulting coil to form an insert equipped with at least two parts that are intended to extend respectively through at least two separate opening panel zones to be reinforced.

Abstract: A system for preforming a sheet of plastic material (MP) including a first element forming a preforming cavity, the system including a second element adapted to be positioned opposite the first element, a set of pressing means sequentially actuated and carried by the second element to apply pressure locally to the sheet of plastic material (MP), so as to press this sheet (MP) against the first element, at least one means for sequential actuation of the pressing means.