Cika wannan jumla: Rashin samun tayin don gasa a 1980, Regazzoni ya koma Ensign. Lokacinsa ya zo ga ƙarshe ba zato ba tsammani kawai tsere huɗu a cikin shekara. Ya yi hadari a lokacin
1980 United States Grand Prix West, wanda aka gudanar a Long Beach, lokacin da ƙarancin birki na Ensign ya kasa a ƙarshen dogon, mai saurin tafiya a kusa da kilomita 280 a kowace awa. Ricardo Zunino ya yi ritaya Brabham aka ajiye a cikin gudun hijira hanya. Regazzoni daga baya ya tuna, "Na buge motar Zunino, sannan na yi tsalle a cikin shingen. Na yi minti goma ban san kome ba. Sai na tuna ciwo mai tsanani a ƙugu na... " Hatsarin ya bar Regazzoni gurgunta daga kugu zuwa kasa, yana kawo karshen aikinsa na gasa. Bayan farfadowa, Regazzoni ya kai karar masu shirya tseren, yana mai cewa matakan tsaron su ba su da inganci. Masu shirya tseren sun lashe shari'ar.