Abstract: A vehicle body superstructure includes a roof side rail having a rail flange upon which a roof panel is mounted, a vertical rail wall that hangs down from the outer end of the rail flange in the vehicle width direction, a bottom rail wall that extends from the lower end of the vertical rail wall to the outside in the vehicle width direction, and a bulging section formed by allowing the bottom rail wall and the vertical rail wall to bulge toward the center in the vehicle width direction, in order to accommodate a slide rail for a sliding door. The outer end of a roof arch in the vehicle width direction is joined to the bulging section. First arch flanges are joined on the lower surface side of the rail flange. Second arch flanges are joined to the lower surface side of the of the bottom rail wall.

Abstract: A vehicle body superstructure includes a roof side rail having a rail flange upon which a roof panel is mounted, a vertical rail wall that hangs down from the outer end of the rail flange in the vehicle width direction, a bottom rail wall that extends from the lower end of the vertical rail wall to the outside in the vehicle width direction, and a bulging section formed by allowing the bottom rail wall and the vertical rail wall to bulge toward the center in the vehicle width direction, in order to accommodate a slide rail for a sliding door. The outer end of a roof arch in the vehicle width direction is joined to the bulging section. First arch flanges are joined on the lower surface side of the rail flange. Second arch flanges are joined to the lower surface side of the of the bottom rail wall.

Abstract: Provided is an automotive rear vehicle body structure which increases the amount of energy that can be absorbed, improves the safety of the vehicle occupant and protects a fuel tank in a reliable manner at the time of a rear end collision while allowing a spare tire to be placed within a cabin. In an automotive rear vehicle body structure having a H-type torsion beam wheel suspension system (12) pivotally supported by side sill extensions (2a, 3a) on either side of the vehicle body, the wheel suspension system including a pair of trailing arms (13, 14) and a torsion beam (15) connecting intermediate parts of the trailing arms with each other, a pair of rear side frames (6, 7) extend rearwardly from side sills (2, 3), and a spare tire pan (10) is defined by downwardly bulging a part of a rear floor panel (11) located between the rear side frames (6, 7).

Abstract: Provided is an automotive rear vehicle body structure which increases the amount of energy that can be absorbed, improves the safety of the vehicle occupant and protects a fuel tank in a reliable manner at the time of a rear end collision while allowing a spare tire to be placed within a cabin. In an automotive rear vehicle body structure having a H-type torsion beam wheel suspension system (12) pivotally supported by side sill extensions (2a, 3a) on either side of the vehicle body, the wheel suspension system including a pair of trailing arms (13, 14) and a torsion beam (15) connecting intermediate parts of the trailing arms with each other, a pair of rear side frames (6, 7) extend rearwardly from side sills (2, 3), and a spare tire pan (10) is defined by downwardly bulging a part of a rear floor panel (11) located between the rear side frames (6, 7).