Imashini nini cyane ikora nk'imashini icukura ikoresheje icyuma cya monolithic ntabwo ifasha gusa mu gukora neza, ahubwo ifasha no mu gutwara imodoka ubwayo, kuko igabanya akazi ko gukata no gusudira, bityo ikabasha gukemura ikibazo cy'urusaku rudasanzwe rw'umubiri; Ku bw'umutekano, uburyo bwo gushushanya bugizwe n'ibikoresho bizana imiterere ihuriweho cyane, kandi bizapfa iyo umutekano w'umubiri uzaba warushijeho kuba mwiza.

Umutekinisiye afite ibintu byinshi byo gushushanya kugira ngo ahure n’umutekano w’impanuka itunguranye. Mu gushushanya imiterere y’umubiri wa Model Y, harebwa ku bintu umunani byagonganye, nko gukubitana imbere, gukubitana ku ruhande no kuzunguruka. Tesla ishobora gutwara no gukoresha neza imbaraga z’impanuka binyuze mu gushushanya imiterere y’umubiri, imbere n’inyuma y’ibyuma birwanya gukubitana, udusanduku two kwinjiza ingufu n’ibindi bikoresho kugira ngo birinde umutekano w’abari mu modoka mu buryo bwose.

Umubiri wa Model Y ukoresha icyuma gihuza aluminium, kandi ibice by'ingenzi bikomezwa n'icyuma cya boron gikomeye cyane, gishobora kwihanganira imbaraga zikomeye. Impeta z'imbere n'iz'inyuma z'urugi (icyuma cya boron), imitako y'imbere y'igisenge (icyuma cya boron), n'imitako y'inyuma (icyuma gikomeye cyane) bigize imiterere ifunze itanga inkunga ikomeye ku mubiri wa Model Y. Imiterere mishya yo gushyira bateri hasi y'imodoka nayo yanogeje cyane imbaraga rusange z'imiterere ya Model Y, bigabanya ibyago byo kuzenguruka no kwinjira ku mpande.