 Nyorai mberi kweiyi ndima - Nokuda kwa1991 akasayinwa nechikwata cheScuderia Italia, chakabhadharwa naBeppe Lucchini neDallara chassis, Judd V10 injini naEmanuele Pirro mumotokari yechipiri. Nemhaka yezvibereko zvakashata muna 1990 motokari dzaifanira kufanoronga asi nokukurumidza dzakazvisimbisa sevatambi vakanaka vepakati. MuSan Marino Grand Prix yakanyorovaLehto akaororwa nokuramba ari munhangemutange yokuneta kuti apedze ari wechitatu, achiwana mapoinzi ake okutanga muF1. Akafuridzira pane dzimwe nzvimbo asi haana kurova zvakare nekuda kwekusavimbika kwakashata uye rombo rakaipa kungopedza pane dzimwe nguva ina. Akagara nechikwata muna 1992, zvino akabatanidzwa naPierluigi Martini uye achishandisa injini dzeFerrari V12 asi chassis itsva yeDallara B192 yakanga ine matambudziko makuru ekugadzirisa. Mhedzisiro yakanakisa yaLehto yaive yechinomwe kuSpa, kutadza kwake kwakanyanya kukwanisa kuHungaroring. 