When at highway speeds (actual speed seems to vary - but over 40 MPH), I intermittently get a very bad wobbling/shaking of the car (2010 RR Supercharged). It lasts differing amounts of time. I just drove 6 hours (VA to NC) and it happened once - for about 2 minutes - and then just seems to go away as quickly as it starts. From the other posts about "death wobble" it seems to start when a bump/pot hole has been hit - I have not noticed anything like that, but will now try to pay attention to see if that is also my case. Does this sounds like the death wobble? If so, I have saved those threads and will have my mechanic go through those steps. Thanks for any input!