Prototyp's paper models began with a Sauber C9 plastic kit super-detailing project gone way off on a tangent. Frustrated by the kit's omission of many structural components, research was done on the chassis design of the C9 to create paper templates as a basis for parts to build up the monocoque inside the model. While most F1 kits capture the architecture of the vehicle with a true stressed chassis and full monocoque underneath removable bodywork, most closed-body sports-car kits skip the internal structure and leave body panels moulded together, only occasionally including an engine and driveline. The very kit-ness of the models often leaves out any deeper insight or understanding of the car's design.