[Turbo_super_charged]

When my new X3 reaches 40mph and above there is a noticeable wind noise. I am not sure if this is normal. It increases with speed; and it doesn't sound mechanical or from vibration, so I am 80% sure it is wind noise.

In other vehicles I used to own, usually the wind noise is lower than other noises such as engine,tire, street noise at moderate speed(<60mph). It only becomes somewhat noticeable at 70mph and above.

[Turbo_super_charged]

It is not so loud that it is a problem, just a little annoying.
My old sedan is a buick, so I am used to a very quiet cabin.