Abstract: A vehicle front portion structure includes: a motor unit disposed at a vehicle front part; a suspension member disposed at the vehicle front part, the suspension member extending in a vehicle front-rear direction and deforming toward a vehicle lower side at a time of vehicle frontal collision; a left-right pair of front side motor mounts connecting a front part of the motor unit with the suspension member; a rear side motor mount connecting a central part, in a vehicle width direction, of a rear part of the motor unit with the suspension member; and a break mechanism that causes the rear side motor mount, which moves toward a vehicle rear side at a time of vehicle frontal collision, to break in the vehicle width direction.

Abstract: A vehicle front portion structure includes: a motor unit disposed at a vehicle front part; a suspension member disposed at the vehicle front part, the suspension member extending in a vehicle front-rear direction and deforming toward a vehicle lower side at a time of vehicle frontal collision; a left-right pair of front side motor mounts connecting a front part of the motor unit with the suspension member; a rear side motor mount connecting a central part, in a vehicle width direction, of a rear part of the motor unit with the suspension member; and a break mechanism that causes the rear side motor mount, which moves toward a vehicle rear side at a time of vehicle frontal collision, to break in the vehicle width direction.

Abstract: A vehicle underbody structure capable of maintaining coupling between a brace and a floor frame against a load transmitted from the front side through the brace is provided, even without making a mechanical strength of a coupling portion between the brace and the floor frames particularly high. A brace is provided with a front-side coupling member and a rear-side coupling member, and the front-side coupling member and the rear-side coupling member are connected together by a load transmission section that is substantially M-shaped in plan view. The rear-side coupling member is connected to outside load transmission members of the load transmission section further to a left-right direction central side than a coupling portion of the rear-side coupling member to each floor frame. A load transmitted to the rear-side coupling member accordingly attempts to deform the rear-side coupling member about a rear end portion of the outside load transmission members.

Abstract: A vehicle underbody structure capable of maintaining coupling between a brace and a floor frame against a load transmitted from the front side through the brace is provided, even without making a mechanical strength of a coupling portion between the brace and the floor frames particularly high. A brace is provided with a front-side coupling member and a rear-side coupling member, and the front-side coupling member and the rear-side coupling member are connected together by a load transmission section that is substantially M-shaped in plan view. The rear-side coupling member is connected to outside load transmission members of the load transmission section further to a left-right direction central side than a coupling portion of the rear-side coupling member to each floor frame. A load transmitted to the rear-side coupling member accordingly attempts to deform the rear-side coupling member about a rear end portion of the outside load transmission members.