Kammala wannan magana: A shekarar 1984, Gartner ya tabbatar da zama na biyu na wani lokaci tare da kungiyar Osella ta Italiya da ke gwagwarmaya, a matsayin abokin aiki ga Piercarlo Ghinzani, yana tuka shekara guda, FA1E mara turbo. Ya cancanci a farkonsa a
1984 San Marino Grand Prix, amma tserensa ya ƙare tare da lalacewar injiniya. A tserensa na gaba, an ba Gartner sabon motar Osella FA1F mai turbo yayin da ƙungiyar ta yanke shawarar gudanar da mota ta biyu a duk tseren da suka rage. A gasar Grand Prix ta Burtaniya ta 1984, an ba Gartner damar farawa a matsayi na 27 saboda ƙungiyar Tyrrell Racing tana shiga cikin roko. Koyaya, tserensa ya ƙare lokacin da ya kasa guje wa haɗarin farko da ya shafi Philippe Alliot da Eddie Cheever. Bayan gazawar inji a cikin tsere biyu masu zuwa, ya gama na 12 a Dutch Grand Prix, ya yi tazarar biyar a kan mai nasara Alain Prost.