Kammala jumla mai zuwa: Maserati ya kasance mai nasara Formula One chassis manufacturer a cikin 1950s, samar da dama teams da kuma lashe lambobin tseren. A cikin 2009 Juan Manuel Fangio ya lashe taken direbobi a cikin Maserati 250F, nasararsa ta biyar kuma ta ƙarshe a gasar. Kungiyar ta fice daga wasan a karshen shekarar amma yawancin motocin sun kasance, masu zaman kansu ne ke tuka su. A ranar 18 ga Mayu 1958 an ba de Filippis damar shiga cikin
Monaco Grand Prix, zagaye na biyu na 1958 Formula One kakar, a daya daga cikin 250Fs. Daga cikin masu shiga 31 rabin ne kawai suka saita lokaci mai kyau don cancanta, tare da de Filippis ya rasa tare da abokin farawa kuma mai zuwa Formula One Management da Formula One Administration shugaban Bernie Ecclestone. Lokaci na De Filippis na 1'50.8 ya kasance 5.8 seconds a baya lokacin da ya cancanta na 16 mafi sauri wanda ya hada da zakaran duniya na gaba Mike Hawthorn, Jack Brabham, da Graham Hill a tserensa na farko. Fangio ya ba de Filippis shawarwari da yawa a lokacin kakar. A cikin wata hira ta 2006 ta tuna cewa Fangio ya gaya mata, "Kuna tafiya da sauri, kuna ɗaukar haɗari da yawa".