Injini kungathiwa iyingxenye ebaluleke kakhulu yemoto, futhi ukwakheka kwayo kunomthelela omkhulu ekusebenzeni kwemoto. Ezimotweni, ukwakheka kwenjini kungahlukaniswa ngezinhlobo ezintathu: ngaphambili, phakathi nangemuva. Njengamanje, amamodeli amaningi emakethe asebenzisa izinjini zangaphambili, futhi izinjini ezifakwe maphakathi nangemuva zisetshenziswa kuphela ezimotweni zezemidlalo ezimbalwa zokusebenza.

Injini yangaphambili ingaphambi kwe-asi yangaphambili. Okuhle ngenjini yangaphambili ukuthi yenza kube lula ukwakheka kwe-gearbox yemoto kanye ne-axle yokushayela. Ikakhulukazi kumamodeli adonsa ngamasondo angaphambili okuyimanje athatha i-absolute mainstream, injini iwadlulisela ngqo amandla emasondweni angaphambili, ikhiphe i-long drive shaft. Ukulahlekelwa kokudluliswa kwamandla kuncishisiwe, futhi ubunkimbinkimbi kanye nezinga lokwehluleka kwendlela yokudlulisa amandla nakho kwehliswa kakhulu.

Injini efakwe phakathi nendawo, okungukuthi, injini itholakala phakathi kwama-asi angaphambili nangemuva emoto, futhi ngokuvamile indawo yabashayeli itholakala ngaphambi noma ngemva kwenjini. Kungashiwo ukuthi imoto ephakathi nenjini kumele idonse ngemuva noma idonsa ngamasondo amane.

Lapho imoto iphenduka, zonke izingxenye zemoto zizosuka ekhoneni ngenxa yokungangeni. Injini iyingxenye enkulu kakhulu, ngakho amandla enjini emzimbeni wemoto ngenxa ye-inertia anethonya elibalulekile esiteringini semoto ekhoneni. Isici senjini ephakathi nendawo ukubeka injini ene-inertia enkulu kakhulu phakathi nendawo yemoto, ukuze ukusatshalaliswa kwesisindo somzimba wemoto kube seduze nebhalansi efanelekile. Ngokuvamile, lezo zimoto zezemidlalo ezisezingeni eliphezulu kuphela noma izimoto zezemidlalo ezinaka ukushayela ubumnandi ezisebenzisa izinjini eziphakathi.

Yiqiniso, injini efakwe phakathi nendawo nayo inezinkinga zayo. Ngenxa yenjini efakwe phakathi nendawo, ikhabethe lincane futhi alikwazi ukuhleleka ngezihlalo eziningi. Ngaphezu kwalokho, ngenxa yokuthi abashayeli nabagibeli basondele kakhulu enjinini, umsindo uyanda. Kodwa-ke, abantu abaphishekela ukusebenza kokushayela imoto kuphela ngeke besaba nandaba nalokhu, futhi abanye abantu bancamela ukuzwa ukuduma kwenjini.
Ngokuvamile, injini emsulwa efakwe ngemuva iwukubeka injini ngemuva kwe-asi yangemuva. Eyimele kakhulu ibhasi, futhi kunenqwaba yezimoto zabagibeli ezinenjini egibele ngemuva. Emele kakhulu iPorsche 911, futhi vele i-smart Iphinde ibe injini yangemuva.