According to my research, the cars i listed are quiet because

来源: 2008-08-12 10:55:40 [博客] [旧帖] [给我悄悄话] 本文已被阅读:

the window glasses are made with 3 layers like a sandwich-- a sound-isolating rubber inside the two glass layers, which makes an important role in blocking the wind noise. Does this feature faint with the aging of the car? I don't think so.