Pedzisa mutsara unotevera: Muna 2002, akasarudza kuisa pfungwa dzake paTelefónica World Series, yaakakunda. Zonta akabva atorwa semutyairi wekuedza weToyota F1 timu muna 2003, achichengetedza chinzvimbo muna 2004. Pakupera kwemwaka, chikwata chakarasa Cristiano da Matta kubva pachigaro chemakwikwi, uye Zonta akafamba muGran Prix ina. Mukati
MuBelgium, akanga achimhanya ari panzvimbo yechina denderedzwa nhatu asati apedza apo injini yake yakadonha. MuSuzuka chikwata chakatora Jarno Trulli uye Zonta aifanira kugara kunze kwechiitiko, asi chikwata chakamubvumidza kukwikwidza mumakwikwi ake epamba, iyo Brazilian Grand Prix, iyo yaakapedza iri gumi nematatu. Akaenderera mberi semutyairi wekuyedza weToyota muna 2005, pamwe chete nemutyairi wechiFrench mutyairi Olivier Panis. MuUS Grand Prix gare gare gore iroro, akamira panzvimbo yaRalf Schumacher akakuvara uye akatora nzvimbo yake pagridhi, chete yeToyota, semamwe mapoka matanhatu eMichelin-shod, kuti abve mujaho nekuda kwekunetseka kwekuchengetedza. 2006 akaona Zonta achienderera mberi neToyota semutyairi wechitatu uye muedzo wechikwata. Akasimbiswa semutyairi wekuedza weRenault Formula One timu yemwaka wa2007 musi wa6 Gunyana 2006.