Subframe Connector dilemma

Contoured subframe connectors continuously or skip welded to the floorpans as well as to the transverse structures (crossmembers) that intersect the front and rear longitudinals make the entire structure inherently stronger than those that simply tie in at the ends and float in space by stiffening the entire ground plane of the floor between the sill boxes. Connect these continuously integrated frame connectors to the sill boxes with torque box plates, either at the ends (like the factory), or continuously the full length of the floor, and the sill boxes and frame connectors will use the entire ground plane of the floor to form large box sections and increase the torsional rigidity yet again.