I test drove a 2011 LR4 this past weekend with about 300 miles on it and as soon as I put it in the interstate, the wheel started shaking pretty intensly. I asked my salesman about it b/c it was very bothersome. He said it was because sometimes the tires get that way if they have been sitting awhile and eventually it works itself out after a few minutes of driving. He was worried it would affect my impression of the car, which it did. He said I could put nitrogen in the tires to help with this. It did get better as we drove, but never went away completely. I hope this is not a major issue. It was really irritating