Kammala wannan jumla: A cikin 1978 Merzario ya haɗu da Guglielmo Bellasi na Formula One na Switzerland kuma ya kafa tushen ƙungiyarsa. Merzario na farko da aka gina Formula One, A1, ya bayyana a 1978 kuma ya kasance mota ne na al'ada wanda ya dogara da shi a kan Maris 761B, tare da tsarin launi mai launin ja da ƙarancin jiki wanda ya tuna da Ferrari 312T2 a cikin amfani da bututun jirgin sama na jirgin sama don shigar da iska. Ya yi amfani da haɗin da aka saba amfani da shi na injin Cosworth DFV da gearbox na Hewland. A livery canza daga ja zuwa baki kafin
1978 Monaco Grand Prix, ko da yake ba har zuwa Grand Prix na Sweden cewa ya gama tseren, ko da yake ba a rarraba shi ba, yana da zagaye takwas na mai nasara bayan dogon lokaci. Don Grand Prix na Austrian, an bayyana A1 na biyu, kodayake an yi zargin cewa wannan tsohuwar ƙungiyar ta Maris 761B ce tare da sabon jiki. Tare da wannan motar a hannunsa, Merzario ya yi aiki kaɗan a cikin cancantar amma har yanzu bai sami matsayi a tseren ba. Ga Grand Prix na Italiya, duka A1s sun shiga, tare da Alberto Colombo yana tuka A1 na asali kuma Merzario ya ɗauki sabon A1. Colombo ya sanya mafi ƙarancin lokaci a lokacin cancanta kuma bai sanya grid ba, yayin da Merzario ya cancanci dacewa, kawai don injin ya kasa a lokacin tseren. Tawagar ta cancanci motar sau takwas a cikin 1978, amma ta yi ritaya sau bakwai tare da gazawar inji.