Ohun elo ọkọ ayọkẹlẹ irin Prefab jẹ iru gareji ọkọ ayọkẹlẹ kan, pẹlu awọn anfani ti idiyele ti o kere, iyara ati irọrun ikole, igba nla, lati jẹ ojutu ti o munadoko julọ fun aabo Sedan si SUV, ọkọ nla, ọkọ oju omi, tirakito, tabi paapaa RV kuro lati ojo ati egbon.