Injini inogona kunzi ndiyo inonyanya kukosha yemotokari, uye marongerwo ayo ane simba guru pakushanda kwemotokari. Kune mota, marongerwo ejini anogona kungokamurwa kuva marudzi matatu: pamberi, pakati uye kumashure. Parizvino, mamodheru mazhinji pamusika anoshandisa injini dzepamberi, uye epakati-akaiswa uye kumashure-akakwirisa injini anongoshandiswa mune mashoma ekuita mitambo mota.

Injini yekumberi iri pamberi peekisero yekumberi. Kubatsira kweinjini yepamberi ndeyekuti inorerutsa chimiro chekufambisa kwemota uye dhiraivha ekisero. Kunyanya kune emberi-mavhiri madhiraivha ayo parizvino anogara mhedziso huru, injini inoendesa zvakananga simba kumavhiri epamberi, ichisiya iyo refu drive shaft. Kurasikirwa kwekutapurirana kwemagetsi kwakaderedzwa, uye kuoma uye kutadza kwehuwandu hwemagetsi ekufambisa kwemagetsi kunoderedzwawo zvakanyanya.

Injini yepakati-yakaiswa, ndiko kuti, injini iri pakati pemberi nekumashure maekisi emotokari, uye kazhinji cockpit inowanikwa pamberi kana mushure meinjini. Zvinogona kutaurwa kuti motokari yepakati-injini inofanira kunge iri kumashure-mavhiri kana mana-mavhiri.

Kana motokari ichitendeuka, zvikamu zvose zvemotokari zvichabuda kunze kwekona nekuda kwe inertia. Injini ndiyo yakanyanya kukura chikamu, saka simba reinjini pamutumbi wemotokari nekuda kweiyo inertia ine simba rakakosha pakufambiswa kwemota mukona. Chimiro cheinjini yepakati-injini ndechekuisa injini ine inertia huru pakati pemuviri wemotokari, kuitira kuti kugoverwa kwehuremu hwemuviri wemotokari kuve pedyo nechiyero chakakodzera. Kazhinji kutaura, idzo chete mota dzemitambo dzepamusoro kana mota dzemitambo dzinoteerera kutyaira mafaro dzinoshandisa epakati-injini.

Ehe, iyo yepakati-yakaiswa injini inewo zvikanganiso zvayo. Nekuda kweiyo yepakati-yakaiswa injini, iyo kabhini yakamanikana uye haigone kurongeka nezvigaro zvakawanda. Mukuwedzera, nokuti vatyairi nevafambi vari pedyo zvakanyanya nejini, ruzha rwakanyanya. Nekudaro, vanhu vanongoteedzera kuita kwekutyaira kwemotokari havachazove nehanya nazvo, uye vamwe vanhu vanotofarira kunzwa kutinhira kweinjini.
Kazhinji kutaura, iyo yakachena yekumashure-yakamisikidzwa injini ndeyekuisa injini kuseri kweaxle yekumashure. Inonyanya kumiririra ibhazi, uye kunongova nemota shoma dzevafambi dzine injini yekumashure. Mumiririri mukuru ndiye Porsche 911, uye zvechokwadi akachenjera Iriwo injini yekumashure.