personally I believe it might be the mirrors causing turbulence and noise.
while I didn't hear any excessive noise IMO on my 400 mile drive back from the dealer. I did experience an issue where the windows would not go up into the track at highway speed, it bowed outward and required me to pull over on the shoulder to get it to roll up.
I had it down as I entered the highway, once I merged and was doing about 70-75mph i attempted to roll it up and experienced this issue.
back 10 or so years ago, Lexus was experiencing the noise and bowing issues on several models of their vehicles, as a fix they started including these "fins" on the cars on the headlights, taillights, and around the mirrors:
the issue was gone after that. Lexus reported that there was a 8 decibel drop in the interior cabin noise as a result of adding these "fins" they even now make replacement caps for the older vehicles affected so owners can install them to eliminate the noise. the are clip in and it takes 30 seconds to replace the original flat caps.
BMW, Mercedes, Audi, and even GM have started to incorporate similar fin designs into various areas of these vehicles to reduce cabin noise and wind turbulence.
My
Genesis G80 had these as well; I never experienced and noise or window issues, the G90s did not, and many G90 people have complained about noise and the windows bowing at high speeds when attempting to roll them up.
I found some
aftermarket PVC 3m stick on fins that mimic this design I am going to install and see if this helps with the window bowing issue, if there is a reduction in wind noise it is a win-win
quote from Lexus engineering:
Constrictions like the gaps between door mounted mirrors and the door frame cause air to accelerate (Bernoulli effect), meaning that the air going though that gap is even more prone to shed vortices at a frequency that we can hear. This fin acts to calm the air, forcing it in a straighter path, disrupting the vortices.