To prevent a fixing point from being seen from the surface even in a simultaneous molding and enhance the appearance by covering the fixing point for fixing to a body panel with a mounting part.

A rear parcel has a plate-like rear parcel body, which has an air cleaner setting part in the rear center, and an air drafter mounting part and a speaker mounting hole part on lateral sides. The air drafter mounting part has a recessed part 7 for preventing an air drafter 19 from being protruded from the surface of the rear parcel, and an air drafter placing part 7A and a lower bottom part 7B lower than it on the bottom part. An iron clip 12 that is a fixing point (b) is mounted on the lower bottom part 7B, and fixed to the reverse part of the lower bottom part 7B by a rivet 15. The air drafter 19 is mounted on the air drafter mounting part 15 so that the head part of the mounting rivet 15 cannot be seen from the surface side to enhance the appearance.