 Kọkọ parí gbólóhùn yìí: Lọdún 1978, Merzario dara pọ mọ Guglielmo Bellasi, tó jẹ ọmọ ilẹ Switzerland tó ń sáré nínú ìdíje Formula One, ó sì fi ìpìlẹ lélẹ fún ẹgbẹ tirẹ. Merzarios first self-built Formula One effort, the A1, appeared in 1978 and was a basically conventional car based largely on his March 761B, with a red color scheme and crude bodywork vaguely reminiscent of a Ferrari 312T2 in its use of cockpit-side ducting for an air intake. Merzarios first self-built Formula One effort, the A1, appeared in 1978 and was a basically conventional car based largely on his March 761B, with a red color scheme and crude bodywork vaguely reminiscent of a Ferrari 312T2 in its use of cockpit-side ducting for an air intake. Merzarios first self-built Formula One effort, the A1, appeared in 1978 and was a basically conventional car based largely on his March 761B, with a red color scheme and crude bodywork vaguely reminiscent of a Ferrari 312T2 in its use of cockpit-side ducting for an air intake. O lo apapo ti o wọpọ ni akoko naa ti ẹrọ Cosworth DFV ati apoti jia Hewland. Àwòrán náà yí padà láti pupa sí dúdú ṣáájú ìdíje Monaco Grand Prix ti ọdún 1978, bó tilẹ jẹ pé kì í ṣe títí di ìdíje Sweden Grand Prix tí ó parí ìdíje kan, bó tilẹ jẹ pé a kò fi orúkọ rẹ sí àkọsílẹ, tí ó jẹ ìyí mẹjọ sí ẹni tí ó borí lẹyìn ìdúró gígùn ní pítọsì. Fun Austrian Grand Prix, a ṣe afihan A1 keji, botilẹjẹpe o fura pe eyi jẹ gangan March 761B atijọ ti ẹgbẹ pẹlu ara tuntun. Pẹlu ọkọ ayọkẹlẹ yii ni ọwọ rẹ, Merzario ṣe diẹ dara julọ ni igbasilẹ ṣugbọn o tun kuna lati wa ni ipo ni ere-ije kan. Fun awọn : Ni Italian Grand Prix, awọn A1 mejeeji ni wọn wọle, pẹlu Alberto Colombo ti n wakọ A1 atilẹba ati Merzario ti o gba A1 keji tuntun. Colombo ni ó fi àkókò tó rọ jùlọ sílẹ nígbà ìdánwò ìdánwò, kò sì wọlé, nígbà tí Merzario gba ìdánwò láìsí ìdààmú, kìkì nítorí pé ẹrọ náà kùnà lásìkò ìdíje. Ẹgbẹ naa ṣe ayẹyẹ ọkọ ayọkẹlẹ ni igba mẹjọ ni ọdun 1978, ṣugbọn o ti fẹyìntì ni igba meje pẹlu awọn aṣiṣe ẹrọ. 