<prompt> Qedela umusho olandelayo: Nakuba uBonetto esegijime izimoto zeFormula One ngaphambili, wenza i-World Championship F1 yakhe yokuqala ngo-  <response>: I-Grand Prix yaseSwitzerland ka-1950. Kwakusele izinsuku ezinhlanu ngaphambi kokuba afinyelele iminyaka engu-47 ubudala. Wangena ngeMaserati 4CLT yakhe emincintiswaneni eminingana, ngaphansi kwesibhengezo seScuderia Milano, futhi washayela i-Alfa Romeo SpA ngo-1951, njengomshayeli wabo wesithathu. Wabelana ngesithathu, noGiuseppe Farina eGran Premio dItalia. Ukudlulela ezimotweni zezemidlalo kwalandelwa, kodwa wabuyela kuFomula One ekupheleni kuka-1952 futhi waba nesikhathi esihle e-Officine Alfieri Maserati ngo-1953, ngokuvakashela ipodiyamu, lapho ephinde wabelana ngomgqomo wesithathu eGrote Prijs van Nederland. Kulokhu uJosé Froilán González waba umlingani wakhe. Ngaphandle kweWorld Championship, uBonetto waba nempumelelo ethile; waba ngowesibili ngo-1949 eGran Premio di Napoli eseFerrari. 