Workhorse Group, Inc., formerly AMP Holding Inc., is a development-stage company. The Company designs, develops, manufactures and sells medium-duty trucks with powertrain components under the Workhorse chassis brand. The Company's products include trucks comprising powertrain and chassis. Its powertrain products include E-GEN and E-100. Its chassis products include W88, W22, W42 and W62. E-GEN is an electric drive, transmission-free system, which has a gasoline/propane or compressed natural gas (CNG) engine that functions as an auxiliary generator. E-100, an all-electric, medium-duty truck, is an electric power-train. It focuses on offering W88 chassis with gross vehicle weight (GVW) ratings of 10,000 to 26,000 pounds. The W22 chassis is designed to meet the needs of the recreational vehicle market for weight ratings till over 26,000 GVW. The W42 chassis is designed for the 12,000 to 14,500 GVW vehicle market. The W62 chassis is designed for the 19,500 to 23,500 GVW vehicle market.