We bought the new Rouge in April '08. At about 5500 miles we started hearing the "NOISE". The service tech couldn't hear it at first. I did get it to make the sound and he heard it. He then drove it and he said he got it to do it worse. They contacted Niaasn tech line. They said that they were aware of the problem. The sound got worse and at 6800 miles they replaced the Trans. This would be the second transmission being the first came in the car. Then at about 12000 miles it reappeared. they didn't hesitate to replace the trans. The service manager could only say that it "must" be fixed but he could not guarantee it is a fix. I'm sorry to say that the trans is already "grawling".