ON-ROAD ELECTRIC Main Companies: Hobby Products International (HPI) Tamiya Team Associated Traxxas OFF-ROAD ELECTRIC Main Companies: Traxxas Duratrax Team Associated Tamiya Hobby Products Incorporated (HPI) ON-ROAD NITRO Main Companies: Team Associated Hobby Products Incorporated (HPI) Duratrax OFF-ROAD NITRO Main Companies: Traxxas Hobby Products International (HPI) Duratrax Team Associated