I just remembered. Quite a few '14s had weather striping around the door windows that was curled in. On two or three of mine I had to lower the windows and guide the w/s with my fingers as I raised the windows. It was a one time thing, so it might be worth looking at.
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Is y'alls sunroof sealing flat and level when closed? [presuming so equipped]
Any uneven points where the windshield seals against the body?
Door rubbers all seated with no dings, etc?
Stupid fuel flap seating [surprisingly noisy if you leave it unlatched] properly?
Smooth transition from the roof to that rear excuse for a spoiler?
About the only wind noise I notice is from the rather large mirrors, and none of the noise is whistly in nature.