Had my wife to look around and the wind noise seems to come from the sun visor area and it's quite pronounce though especially running at 115k/h and above..

I believe everyone also experienced the same thing bro. You just have to get used to it. But having said that, it works just slow response.

Nope, the FC is still ok for me.... my average speed is 100kmh on SID and FC ~ 6.6 l/100km

if u pillar C sound... door visor from venntec can resolve it.. the RM186 version. if others pillar noise... use the below

http://forum.lowyat.net/topic/2272078

for our Preve... u need 12-13Meter Big D, 4Meter P. just for the 4door.

when idle or speeding? i have the sound when idle and its hardly noticable if i dont rubber my ride... after rubber. it noticeable. speak to SC. they said might be the air hole underneat never close tight... will go fix it at 5k and make appointment.