Pendulum type mount system

A pendulum type mount system comprising:

• a powerplant unit that includes an internal combustion engine and generates a drive force for running a vehicle;
• an upper right mount that mounts an upper right portion of the powerplant unit on a vehicle body;
• an upper left mount that mounts an upper left portion of the powerplant unit on the vehicle body;
• and
• a pair of first and second lower torque rods that connect a lower portion of the powerplant unit with the vehicle body on a rear side of the powerplant unit,
• wherein the first and second lower torque rods are located on opposite sides to each other with respect to a reference plane that includes a gravity center of the powerplant unit and is perpendicular to a lateral direction of the vehicle body,
• wherein a first spring constant of the first lower torque rod is not smaller than a second spring constant of the second lower torque rod, and
• wherein, when a plane that includes a connecting point of the first lower torque rod with the powerplant unit and is perpendicular to the lateral direction is denoted as a first plane and a plane that includes a connecting point of the second lower torque rod with the powerplant unit and is perpendicular to the lateral direction is denoted as a second plane, a distance between the first plane and the reference plane is not larger than a distance between the second plane and the reference plane.