Buyers must prioritize the Powertrain and Drivetrain configuration, ensuring the Engine Displacement and Horsepower meet the intended load requirements. For heavy-duty applications, verify the Gross Vehicle Weight Rating (GVWR) and Axle Load Capacity. Additionally, check the Emission Standard compliance (e.g., Euro V or Euro VI) to ensure the vehicle can be legally registered in the destination country. For electric trucks, focus on Battery Capacity (kWh), Maximum Range, and Charging Interface compatibility.