In accordance with certain embodiments of the present disclosure, a vehicle trailer is provided. The vehicle trailer includes a roof and a floor separated from each other by a pair of opposing walls that extend along the length of the floor. The roof, floor, and walls define a space accessible by a trailer door with each of the walls having a front edge and a rear edge and having a height that extends from the floor to the roof. The height is substantially the same along at least a portion of the length of the walls. The vehicle trailer further includes a pair of side wall fairings having a leading edge and trailing edge. Each side wall fairing is positioned on a different wall from the other adjacent to the rear edges of each of the walls such that the leading edge of each side wall fairing contacts the wall and the trailing edge of each side wall fairing does not contact the wall. Each side wall fairing has an upward incline and downward incline. The side wall fairings can be utilized with one or more other components that are described herein.