The second chassis, the Piuma ('Feather'), revolutionized karting design, and was so successful that it won the World Championships in 1964, 1965 and 1966.
O segundo chasis, o Piuma (pluma), revolucionou o deseño do karting, e tivo tanto éxito que gañou o Campionato Mundial en 1964, 1965 e 1966.