This is my 3rd gti in 3 years never had an issue with the 2009 or the 2010 always ran smooth. Took out the new 2013 gti today & noticed a vibration as soon as I started it. Still felt it in "n" & "r", in or out of the water. seems to go away around 20 MPH. No sure if this is normal or not. Has anyone else notice this before I bring it back to the dealer & have them look at it?