C2 GTS is just 3 months old with 3000 Kms. I am facing a terrible and very annoying rattling noise from rear passenger side window. Noise exists only at speeds above 130-140Kms and it is definitely related to the wind and not vibration. I took car to dealer and they insist noise/rattle is related to wind and most probably to a defective window rubber. They also recommend not to try and fix it as it is not a straight forward procedure to remove all trims especially B pillar, window, etc that might cause other noises, rattles, etc. Ive placed a seal rubber around the window but didn't help, noise still there. Any suggestions? Thanks and excuses for my Greek-lish!!!