Question: A stressed member engine, is a vehicle engine used as an active structural element of the chassis to transmit forces and torques, rather than being passively contained by the chassis with anti-vibration mounts, Automotive engineers use the method for what particular purpose in vehicles, Automobile Engineering is a branch study of engineering which teaches manufacturing, designing, mechanical mechanisms as well operations of automobiles?
Answer: 
weight reduction and mass centralization
weight reduction and mass centralization