This grey three bay ACF Center Flow? covered hopper with elongated hatches is painted with black ?Glasshopper II? lettering and multicolored bands and runs on black Barber? Roller Bearing trucks. The ?Glasshopper II ? was a covered hopper car produced in a venture involving ACF Industries, Southern Pacific, and Cargill to build a car body made of filament-wound, fiberglass-reinforced polyester. The two cars built had excellent corrosion resistance properties. One car went through a derailment with less damage than a steel car would have sustained. However, cost discouraged its future use.