Tuhia he haere tonu mō tēnei wāhanga - I te tau 1984, i whakaū a Gartner i te tūru tuarua wā-wā me te kapa Osella Itari e uaua ana, hei hoa kapa ki a Piercarlo Ghinzani, e rere ana i tētahi FA1E kore-turbo, he tau-tau. I tohu ia i tana tīmatanga i te 1984 San Marino Grand Prix
, engari i mutu tana whakataetae i te pakaru o te miihini. I tana whakataetae e whai ake nei, i whakawhiwhia a Gartner ki te Osella FA1F hou me te turbo ka whakatau te roopu ki te whakahaere i tetahi motuka tuarua i nga whakataetae katoa e toe ana. I te 1984 British Grand Prix, i whakaaetia a Gartner ki te tiimata i te tuunga 27 na te mea i uru atu te roopu Tyrrell Racing i raro i te piiraa. Heoi, i mutu tana whakataetae i te wa kaore i taea e ia te karo i te aitua tuatahi e pa ana ki a Philippe Alliot me Eddie Cheever. Whai muri i nga ngoikoretanga miihini i roto i nga whakataetae e rua i muri mai, ka mutu ia i te tekau ma rua i te Dutch Grand Prix, e rima huringa i muri i te toa a Alain Prost.