Rubuta ci gaba ga wannan sakin layi - 1979: Monaco Grand Prix
da Indianapolis aka shirya don wannan rana, saboda haka Mario aka tilasta tsallake 1979 Indianapolis 500. Wannan shi ne karo na farko da ya rasa tseren tun lokacin da ya zo a matsayin rookie a 1965. A cikin shekaru goma na 1970s (1970-1979), Mario bai sami damar jagorantar zagaye ɗaya a cikin 500 ba.