… I swear I tried the search, but unfortunately I didn’t find anything on the subject, although I had expected it, because both our XC90, which was driven to the test at the time, as well as our current vehicle, from a certain speed and mostly on the highway, started to whistle … not permanently, but regularly “always again” … … probably comes from the right front area and could be dependent on the wind direction, but where exactly the wind catches and causes the whistle, we could not really locate so far. Best greetings from the north.