I bought my cobra two weeks ago brand new with seven miles on it. As soon as I drove it home I noticed a noise like the tires weren't balanced. Checked tires and noticed a slice in the sidewall. Had tire and wheel replaced with no problem from dealer. The noise is still there when I decelerate from 45mph or above. The car does vibrate at around 65mph. I thought this vibration problem (ssm16341) was taken care of with the newer production cars. Anybody with new cobras having this problem? Btw going to dealer fri. 2nd time in two weeks.