| 摘要 |
A vehicle body lateral side portion structure including a side sill which has a closed cross-sectional structure formed from an inner panel and an outer panel, and is arranged along the vehicle longitudinal direction, wherein: an outer side wall of the outer panel includes a plurality of step portions; an arch surface which protrudes towards a vehicle exterior side taking, as an apex point, a vicinity of a join position with a center pillar of the vehicle body is formed in a portion of the outer side wall; the outer panel includes a planar portion adjoining the arch surface and a rectilinear portion extending in the vehicle longitudinal direction; a distal end portion of the side sill is connected to a front side frame of the vehicle body; and a rear end portion of the side sill is connected to a rear frame portion of the vehicle body.
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