From the side, the styling strongly suggests traditional Infiniti. The QX4 is derived from the Nissan Pathfinder and its physical architecture projects that. Another indication of this is the handle for the rear side door, which is not in the door's lower panel but notched flush into the trailing edge of the window frame, well above the QX4's beltline. The lower-body, side cladding is beefy, the better to link the fuller front and rear bumpers. It looks solidly planted.

The QX4's split-level rear liftgate combines substance with softly sculpted smooth lines.