A trailer apparatus is disclosed herein which includes tracks adjustably mounted within a trailer body and having a first position for the transporting of automobiles and a second position permitting the carrying of other types of cargo. The tracks are hingedly mounted to the inside of the side walls of the trailer body and pivot downwardly for the carrying of automobiles and upwardly against the side wall to permit the carrying of other types of cargo. Front and rear doors are provided on the trailer and incorporate a track for allowing the loading and unloading of automobiles onto the tracks within the trailer body.