Well... a little update... if I didn't already post this and have forgotten. ;P
For Christmas I drove from Nashville to Kansas City. Great weather and it was the first long trip I've taken in the Xfire. Surprisingly comfortable for long trips.
After I came back, I discovered I had just avoided disaster by sheer luck.
As mentioned in another thread, I had a slow leak in my passenger's side rear tire. I'd loose about 5 lbs a week. I thought the dealer had "got me". Didn't think too much about it as the tire was holding air for a week prior to my trip, during the trip and just fine when I got back to Nashville.
Then after sitting for a couple days (I don't drive the car to work very often) the tire had leaked again and my dummy light came on. I decided to take it to my local mechanic and see what they could find, price new tires, etc, etc.
They told me they found a nail.
So, I apparently drove 1,200 miles with a nail in my tire and was doing just over 130 mph for a couple miles in there.