He contracted aeronautical engineer Corradino D'Ascanio, to redesign the scooter.
Piaggio was displeased with the MP5, especially the tall central section. 5'), the prototype was nicknamed 'Paperino' (either 'duckling' or 'Donald Duck' in Italian). Officially known as the MP5 ('Moto Piaggio no. In addition to the bodywork, the design included handlebar-mounted controls, forced air cooling, wheels of small diameter, and a tall central section that had to be straddled. In 1944, Piaggio engineers Renzo Spolti and Vittorio Casini designed a motorcycle with bodywork fully enclosing the drivetrain and forming a tall splash guard at the front. Piaggio MP5 'Paperino', the initial Piaggio prototype