To provide a front independent suspension type suspension system including an engine constituting element as a structural support body.

The engine component 16 is attached to a longitudinal-directional frame member 22 attached to a longitudinal-directional main frame 14. The support structure receives and supports the engine component 16 between the first vertical member and the second vertical member. The support structure and the engine component 16 provides a stable and strong assembly for attaching an independent suspension type suspension part.