Upon a rear-end collision of a vehicle, an arm section(s) of a cross member of a rear suspension member on the rear side of the vehicle, which is(are) positioned in a low-strength region in a vehicle-body strength distribution, undergoes crush deformation together with a corresponding rear side member(s). Deformation of the part of the rear suspension member other than the arm sections, which is positioned in a high-strength region in the vehicle-body strength distribution, is suppressed, so that a high voltage component mounted in the high-strength region is protected.