Mota da motocin lantarki, ko ba dade ko ba jima, dole ne su ci tituna da hanyoyi duniya don taimakawa rage dumamar yanayi ta rage rage hayaƙin CO2 a cikin yanayi. Yana ɗaya daga cikin abubuwan da za ayi la'akari dasu don taimakawa tare da waɗancan manufofin waɗanda aka ɗauka a COP21 a cikin Paris, kodayake kasashe da yawa sun kusa tsallake gasar Olympics.
Kawasaki Motor Co ya co-ɓullo da injin motar farko na farko ba tare da amfani da ƙananan ƙarfe masu nauyi a ciki ba, wanda ke nufin cewa zai rage dogaro da kayan tsada waɗanda China ke samarwa galibi.
Motocin haɗin gwiwa waɗanda suna hada injin mai da na lantarki sun zama sananne a yawancin kasashe masu tasowa, musamman a cikin sufuriAmma samo tushen tushen abubuwa marasa mahimmanci, kamar su dysprosium ko terbium, ya zama babban kalubale.
A shekarar 2010 China ta sanya a ban lokaci a cikin fitattun ma'adinai da ake fitarwa zuwa Japan, saboda al'ummomin biyu sun shiga cikin rikici kan wasu yankuna. Honda, wanda shine na uku a jerin motoci a duniya, ya fada a ranar Talata ta makon da ya gabata cewa sabbin injina sun yi amfani da maganadisun da kamfanin Daido Steel Co ya kirkira wadanda ba su da dysprosium ko terbium.
Wannan yana da rage farashin samarwa maganadiso, babban mahimmin motsi a cikin injuna, da kimanin kashi 10 yayin rage nauyinsu da kashi 8. Za a yi amfani da sabbin injunan ne a cikin karamar minivan mai zuwa, wacce ake siyarwa a Japan da sauran kasuwannin Asiya, kuma za a bayyana a lokacin bazara.
Honda ya fara neman hanyar zuwa rage amfani da ƙananan ƙarfe masu nauyi Yau shekaru 10 kenan, amma hauhawar farashi a cikin 2011 ya tilasta su haɗuwa da Daido. Wannan fasahar zata rage farashi da kuma rage fallasawar mai sana'anta zuwa canjin farashin. Koyaya, motar har yanzu tana amfani da ƙarfe mai ƙarancin haske wanda ake kira neodymium, wanda ana iya samun sa a Arewacin Amurka, Australia da China.