Kammala jumla mai zuwa: Hoshino ya halarci gasar Formula One Grands Prix guda biyu, wanda ya fara a ranar 24 ga Oktoba, 1976 a gasar Japan, wanda ya sa shi - tare da 'yan uwansa Noritake Takahara da Masahiro Hasemi - su ne direban Japan na farko da suka fara gasar Formula One Grand Prix. Yana tuka Tyrrell-Ford don Gasar Heroes, ya yi tsere har zuwa na huɗu, amma ya yi ritaya bayan ya gama amfani da taya. Ya dawo a 1977 kuma ya sake shiga cikin
Gasar Grand Prix ta Japan da ke tuki don Gasar Heroes. Ya gama a wuri na goma sha ɗaya yana tuka Kojima-Ford mai shekara ɗaya. Bai samu maki a gasar ba a cikin aikinsa na Formula 1.