Expanding margins, surging profits: 2 Auto stocks finding their next growth engine

component for motion-related rotary transmission of torque and rotational frequency

mobile machine used for transport, whether it has an engine or not (eg, towed or prime mover), including wheeled and tracked vehicles, aircraft, watercraft, and spacecraft

group of components (on a mechanical vehicle) that deliver power to the driving wheels; excludes the engine or motor that generates the power (in contrast, the powertrain is considered to include both