A rail and carrier system for first and second removable seats of a motor vehicle is described. The rail and carrier system includes two lower rails fixedly attached to and positioned laterally along a floor of the motor vehicle. Two upper rails are nested with and laterally slidable within each of the lower rails. The rail and carrier system further includes four cross brackets laterally spaced apart and arranged perpendicular to the upper rails, two connecting the left upper rails, and two connecting the right upper rails. Covers are connected to and extend between the cross brackets.