42 Engineering services for motor vehicles in the field of engines, transmissions and drivelines, namely, design and engineering of axles, electric axles, gearboxes, power transfer units, rear drive units, engines, transmissions, electric controls, batteries; engineering services in the field of prototype machining and assembly, quality inspection, rapid prototypes in plastics and metals, metal fabrication and calibration, and controls; product design and development in the field of products used in CAD, CAE, program management, validation plan design and execution, assembly and component level testing, namely, test methods, test fixtures, test programs, data and test results analysis, test hardware, NVH hardware and software adaptation, instrumentation and environmental conditions