In an embodiment a vehicle body structure includes a front pillar tube positioned inside of each of a pair of front pillars in a vehicle and a center pillar tube positioned inside of each of pair of center pillars of the vehicle, wherein the front pillar tube and the center pillar tube cross each other.

A profile includes two end wing portions with substantially a transversal direction (Y), two lateral wall portions having substantially a height direction-(Z), a frontal wall portion having substantially a transversal direction (Y), two curved transition zones (R1, R2) disposed between the lateral wall portions and the frontal wall portion, and two curved transition zones (R3, R4) disposed between the end wing portions and the lateral wall portions. A specific portion of each curved transition zones (R1, R2) between the lateral wall portions and the frontal wall portion has a tensile strength lower than the tensile strength of the rest of the cross-section. This configuration also relates to a longitudinal beam, a cross-member, a pillar, a B-Pillar or a C-Pillar having the profile, and to a vehicle provided thereof.

A profile includes two end wing portions with substantially a transversal direction (Y), two lateral wall portions having substantially a height direction-(Z), a frontal wall portion having substantially a transversal direction (Y), two curved transition zones (R1, R2) disposed between the lateral wall portions and the frontal wall portion, and two curved transition zones (R3, R4) disposed between the end wing portions and the lateral wall portions. A specific portion of each curved transition zones (R1, R2) between the lateral wall portions and the frontal wall portion has a tensile strength lower than the tensile strength of the rest of the cross-section. This configuration also relates to a longitudinal beam, a cross-member, a pillar, a B-Pillar or a C-Pillar having the profile, and to a vehicle provided thereof.

An embodiment structure for reinforcing rigidity of a quarter member includes a rear shock absorber member configured to position a rear shock absorber, a quarter vertical member extending from an upper end portion of the rear shock absorber member to an upper portion of a quarter glass pane, and a rear pillar member extending from the upper portion of the quarter glass pane up to a rear glass pane and overlapping a portion of the quarter vertical member.

An embodiment structure for reinforcing rigidity of a quarter member includes a rear shock absorber member configured to position a rear shock absorber, a quarter vertical member extending from an upper end portion of the rear shock absorber member to an upper portion of a quarter glass pane, and a rear pillar member extending from the upper portion of the quarter glass pane up to a rear glass pane and overlapping a portion of the quarter vertical member.

An embodiment is a vehicle body rear connection structure including a chassis frame, a rear vehicle body assembly with a rear mounting portion connected to the chassis frame, and a rear end module assembled with the rear vehicle body assembly in a length direction of the vehicle body and the rear end module with an end module mounting portion connected with the rear mounting portion, the rear end module including a rear protruded portion configured to provide bolting engagement with the rear vehicle body assembly in a vertical direction of the vehicle body, and a forward protruded portion configured to be bolted to the rear vehicle body assembly in the vehicle body length direction.

An embodiment rear vehicle body structure includes a rear vehicle body assembly and a rear end module connected to the rear vehicle body assembly in a length direction of a vehicle body. An embodiment rear vehicle body assembly includes a roof rail, quarter completions connected to each end of the roof rail, respectively, and a back panel connecting the quarter completions.

An embodiment rear vehicle body structure includes a rear vehicle body assembly and a rear end module connected to the rear vehicle body assembly in a length direction of a vehicle body. An embodiment rear vehicle body assembly includes a roof rail, quarter completions connected to each end of the roof rail, respectively, and a back panel connecting the quarter completions.

A vehicle rear portion structure includes a cross member that extends in a vehicle width direction at a vehicle rear, a rear wheel house that accommodates a rear tire, a rear pillar that extends in a vehicle vertical direction, a reinforcing member that connects the rear pillar with the rear wheel house, and a joining member that connects a lower end portion of the reinforcing member with one end portion of the cross member. The rear pillar is divided into a general portion and a high-rigidity portion. The high-rigidity portion is connected to an upper end portion of the general portion and is specified with a higher rigidity than the general portion. The reinforcing member is connected to the high-rigidity portion.

A vehicle skeleton structure includes: a first front pillar portion provided at a first side portion of a vehicle body; a second front pillar portion provided at a second side portion of the vehicle body; a front upper cross portion coupled to upper portions of the first and second front pillar portions; a front lower cross portion coupled to lower portions of the first and second front pillar portions; a first rear pillar portion provided at the first side portion along a rear peripheral edge portion of the door opening portion; a second rear pillar portion provided at the second side portion; a rear upper cross portion coupled to upper portions of the first and second rear pillar portions; and a rear lower cross portion coupled to lower portions of the first and second rear pillar portions.