Rubuta ci gaba don wannan sakin layi - A watan Janairun 1977 Lunger ya sanar da cewa ya sanya hannu tare da BS Fabrications, ƙungiyar tsere ta Ingila, kuma mai ƙera sassan motar tsere. Ya fito da McLaren M23, motar da James Hunt ya tuka lokacin da ya lashe gasar tseren tsere ta duniya ta 1976. A tserensa na farko na kakar, Lunger ya gama 14th a 1977 Grand Prix na Afirka ta Kudu yana tuki a cikin Maris-Ford. A makon da ya gabata kafin tseren ya rasa ƙafafun dama na baya kuma ya fadi. Ya ɗauki ma'aikatansa mako guda su sake gina motar daga tushe. A lokacin da ya cancanta ya yi tafiyar hawa uku kafin motarsa ta fashe. Wannan yana nufin cewa Lunger ya fara tseren a baya. Lunger ya cancanci Maris a jere na 11, matsayi na 21 na farawa don 1977 United States Grand Prix West. Bai kammala tseren ba bayan ya yi hatsari a zagaye na 4. Ya tuka McLaren zuwa matsayi na 19 a 1977 Grand Prix na Jamus a Hockenheim. Lunger ya cancanci na 17 a Zeltweg don 1977 Austrian Grand Prix
Ka yi haƙuri. Yana da lokaci na 1 minti, 41.40 seconds. Ya sanya na 9 a Zandvoort a cikin 1977 Dutch Grand Prix. McLaren dinsa ya kasance zagaye 2 a bayan Lauda mai nasara. Lunger ya kasance na 10, 2 laps baya, a 1977 United States Grand Prix.