Bonnet for automobile having automobiles that protects the heads of pedestrians

A bonnet for an automobile constructed to protect heads of pedestrians comprising an outer member made from fiber reinforced plastic (FRP) and an inner member made from FRP joined to a back-surface side of said outer member, wherein 1) said inner member has a stiffener structure formed in a hat shape in cross section, and at least a part of said inner member has a deformable sectional portion formed as a structure capable of being deformed at a rising surface part of said hat shape by a vertical load and consists of two separate parts longitudinally spaced apart from each other in a forward and backward position of a vehicle body, and 2) at least a part of said outer member has a sandwich structure in which a core material is interposed between FRP skin plates, wherein at least a part of said inner member has a stiffener structure formed in a schematic hat shape in cross section, a bottom surface of said inner member is inclined relative to a vehicle body-side facing surface, and said inner member is formed in a rotational deformable shape in which a rotational deformation of said inner member toward a central portion side in a plane direction of said bonnet is possible after a part of said bottom surface of said inner member comes into contact with said vehicle body-side facing surface.