Kaʻa ʻŌhua He kaʻa ʻōhua ʻo Interliner he 13 mika ka lōʻihi i hoʻolālā ʻia no ka lawelawe, ke kula, a me ka halihali ma waena o nā kūlanakauhale ma nā ala pōkole. He 63 noho ko ke kaʻa, a hiki ke hoʻololi ʻia ka māhele waena i wahi kū a me wahi no nā noho huila me nā noho pelu. Loaʻa kekahi mea hāpai noho huila ke noi ʻia. Ma waho, he helehelena ʻeleʻele ʻoi me nā kukui mua i māhele ʻia, he kino ʻeleu, a me kahi uhi aerodynamic no nā pahu kinoea kūlohelohe i kaomi ʻia. Hana ʻia ke kino monocoque me ke kila a me ka ʻalumini. Ua manaʻo ʻia ʻo Interliner ma ke ʻano he hāʻina waiwai a haʻahaʻa ka hoʻokuʻu ʻea no nā ala maʻamau.