Reweigh 1993 These cars, developed in the early 60's and manufactured from 1965 to the present were designed to haul granular products that should not become wet. Grain, fertilizer, and plastic pellets were common commodities for these cars. Tens of thousands of them are in service today on virtually ALL major railroads, as well as many regionals. Currently, we offer these cars in undecorated, data-only (ACF gray) and 34 railroads. More road names are planed.