The file 'Trunk Bottom Support Pad (convertible/coupe) For BMW Vehicles 3D Printer Model' is (stl) file type, size is 26.7KB.
I lost my cap some time ago and I found one here, but not for my model and not in design I wanted. Therefore I did model for my car. It is tested in e46 convertible, but probably will fit coupe and maybe also other models.