Abstract: A vehicle substructure includes: a floor panel placed in a tense state between a floor tunnel and a side sill; a front pillar extending in a vehicle up-down direction from a front end of the side sill. The vehicle substructure further includes: a lower dash panel arranged at a front portion of the floor panel; and a lower dash crossmember extending in a vehicle width direction at a lower end of the lower dash panel. The lower dash crossmember has an inner end in the vehicle width direction thereof coupled to the floor tunnel and an outer end in the vehicle width direction thereof coupled to the front pillar.

Abstract: A vehicle body structure has: a front plate portion that faces in a vehicle front-rear direction; an inclined portion that obliquely descends rearward from a lower end of the front plate portion and is coupled to a floor panel making up a floor surface of a cabin; an arch-shaped portion located at outer end portions in a vehicle width direction of the front plate portion and the inclined portion and makes up a wheel arch-shaped rear portion of a tire house; a front side frame located inward of the arch-shaped portion in the vehicle width direction and extends from the front plate portion to the inclined portion in the vehicle front-rear direction; and a reinforcement panel placed over the arch-shaped portion. The reinforcement panel is disposed outward in the vehicle width direction of an innermost portion in the vehicle width direction in the arch-shaped portion.

Abstract: A vehicle body structure has: a dash cross member on a front wall section of a vehicle interior, and forming a closed cross section extending in a vehicle width direction; a floor tunnel on a vehicle-widthwise center section of the vehicle interior, formed in a groove shape opened to a lower side, and extending in a front-rear direction; a corner patch on a vehicle exterior side of the floor tunnel and extending along a ridge portion of the floor tunnel in the front-rear direction; and a first joint at which front end sides of the dash cross member and the corner patch are joined together. The dash cross member is provided on the vehicle interior side of the floor tunnel so as to range continuously from the floor tunnel to both vehicle-widthwise sides, and the floor tunnel includes a front extension portion extending frontward beyond the first joint.

Abstract: A vehicle body structure has: a front plate portion that faces in a vehicle front-rear direction; an inclined portion that obliquely descends rearward from a lower end of the front plate portion and is coupled to a floor panel making up a floor surface of a cabin; an arch-shaped portion located at outer end portions in a vehicle width direction of the front plate portion and the inclined portion and makes up a wheel arch-shaped rear portion of a tire house; a front side frame located inward of the arch-shaped portion in the vehicle width direction and extends from the front plate portion to the inclined portion in the vehicle front-rear direction; and a reinforcement panel placed over the arch-shaped portion. The reinforcement panel is disposed outward in the vehicle width direction of an innermost portion in the vehicle width direction in the arch-shaped portion.

Abstract: A vehicle body structure has: a dash cross member on a front wall section of a vehicle interior, and forming a closed cross section extending in a vehicle width direction; a floor tunnel on a vehicle-widthwise center section of the vehicle interior, formed in a groove shape opened to a lower side, and extending in a front-rear direction; a corner patch on a vehicle exterior side of the floor tunnel and extending along a ridge portion of the floor tunnel in the front-rear direction; and a first joint at which front end sides of the dash cross member and the corner patch are joined together. The dash cross member is provided on the vehicle interior side of the floor tunnel so as to range continuously from the floor tunnel to both vehicle-widthwise sides, and the floor tunnel includes a front extension portion extending frontward beyond the first joint.