Re: Looking for Crossfire chassis expert.
"Yes, the car has been hit from behind while stopped in August of 2006. I first complained about the darting and window and door problems in October of 2004."
OK then there's your answer!!! Spend some money and get a unibody expert to straighten the chassis!
And poof........problems solved!
Next time don't purchase a car thats been hit before, unless its checked by an expert.