Nyorai kupfuurira kweiyi ndima - Brabham akadonhedza Fabi nokuda kwa 1985 uye iye pakutanga akarwa kuti awane boka. Nhoroondo yake muItaly yakamubvumira kuti adzokere kuToleman (ikozvino yakatsigirwa zvikuru neBenetton Group) pavakange vanyatsobatana neChampionship paMonaco Grand Prix. Fabi akatyaira No. 19 Toleman Motorsports Group Toleman TG185-Hart 415T. Mwaka wakatanga kunonoka nokuti Toleman yakanga yarasikirwa nematai ayo apo Michelin yakabuda muF1 pakupera kwa1984. Vakanga vasingakwanisi kuwana matai eGoodyear uye Pirelli yakanga isingazovagoveri sezvo vakanga vatyora chibvumirano nekambani yeItaly pakati pa1984 ndokuenda naMichelin. Benetton yakatenga zvose zviri zviviri Toleman neboka reMweya uye yakatamisa chibvumirano cheMweya Pirelli kuna Toleman. Kutanga kunonoka kwaireva kuti TG185 yakanga isati yambovimbika zvechokwadi, asi kumhanya kwaFabi kwakatungamirira kunzvimbo yokutanga bedzi yechiratidzo, paGerman Grand Prix
, paNürburgring itsva. Mujaho waFabi wakaparadzwa apo kubatanidza kwakatsvedza kwakareva kuti akanga ari pasi zvikuru mumutsetse pakupera kwedenderedzwa rokutanga. Chikwata chakakundikana kuwana chero mapoinzi uye Fabi akapedza kaviri chete (kunyangwe makwikwi aya akakanganiswa nematambudziko emuchina). Muna 1980, World Champion Alan Jones, uyo akashandisawo injini yeHart muHaas Lola yake, mukupera kwemwaka akazvitsanangura se "kutumira mukomana kuti aite basa remurume" muF1 vachipesana nevakaita saRenault, Ferrari, BMW, Honda uye TAG-Porsche. Fabi akanakisa kupedzisa yaive yegumi nembiri paItaly Grand Prix uye aizoenda zvakare asina kuverengerwa nekuda kwekusawana mapoinzi.