Q4 - Kaʻa kaʻa
ʻO kēia ke kaʻa huila mau loa i hoʻohana ʻia e Alfa Romeo. Hana ka ʻōnaehana ma ke kumu o kahi ʻokoʻa kikowaena Torsen, a ukali ʻia e nā ʻokoʻa kikowaena bevel. Hoʻonoho ʻia ia i loko o kahi hale maʻamau me ka ʻokoʻa mua a pane i ka ʻokoʻa o ka torque. No laila, e puunaue mau ana ka holo o na axles elua i ka mana engine ma waena o na huila mua a me hope. Ma lalo o nā kūlana maʻamau, lawe ʻia ka 57% o ka torque ma o ka TwinDiff limit-slip differential i nā huila hope, a ʻo ke koena 43% i nā huila mua. He kūpono kēia lākiō kaʻa no nā kūlana maloʻo a kū ʻole kahi ʻano like o ke kaʻa me kahi kaʻa kaʻa huila hope. Ma nā kūlana koʻikoʻi, hiki i ka Torsen differential ke puʻunaue i ka torque mai 22:78 a 72:28 ma waena o nā axles ʻelua. Ma kēia ala, ʻaʻole hoʻomaikaʻi wale ka hoʻokele ʻana o nā axles ʻelua o ka Q4 i ka paʻa ʻana i nā ʻili pahee, akā mālama pū kekahi i ke ala i ka neʻe ʻoi. Ua kōkua ka ʻōnaehana i ka hoʻopau ʻana i ka understeer ma ka palena, no laila inā he skid, ʻaʻole e hele pololei ke kaʻa, e like me ke ʻano o ka holo kaʻa mua, akā nani nā ʻaoʻao me nā huila ʻehā. Eia naʻe, ʻaʻole pono e hoʻonui i ka wikiwiki o ka neʻe ʻana, no ka mea ua koi ʻia kahi mea hoʻokele akamai e hopu i kahi pahee, a ma ke ʻano o ka Alfa 159, ʻoi aku ka aneane ʻelua-ton ATV. A ʻo ia ka nui o ke kaumaha, kahi e hoʻohaʻahaʻa iki ai i ka hiki o kahi ATV mīkini kaumaha. Ma ka hoʻohālikelike hope loa, he lima lima māmā me ka liʻiliʻi a me ka māmā 1,75 TB, akā ʻo 1,9 JTD hoʻi. ʻAʻole ʻoi aku ka maikaʻi o 2,0 JTD. ʻO ka maikaʻi o ka ʻōnaehana Q4 ʻo ka ikaika mechanical, ʻo ka hemahema pili ka palena palena palena loa i hopena mai ke kumu hoʻolālā. Hiki ke loaʻa iā Q4, no ka laʻana, ma nā hiʻohiʻona Alfa 159, 159 Sportwagon, Brera a me Spider.
