Tank Assembly problems of the 2007 GMC Yukon

I own a 2007 gm Yukon xl. In or about may-June of 2009 the car began running badly and smelled of gas. I returned it to the dealer (sun pontiac GMC of wantagh, NY) and they said they corrected the problem. It happened again and time again with the check engine light appearing and onstar calls to see if I was okay. Many reports from onstar also confirm this. After many trips to sun pontiac their service department had refused to issue me a repair order because Yukons were having explosive conditions, especially mine. I called gm and they said they never had any such problem and referred me to another dealership where the same problem occurred again. I was ordered not to drive the vehicle and have it towed from my home because of the same explosive condition. Since June 2009 I have had over 300 phone conversations with gm. I personally witnessed the entire rear end undercarriage of my vehicle in pieces. I have read and been told that it was a manufacturer defect that even after they replaced harnesses, gas tanks, tubes, gas lines etc. It could not be fixed. The last words out of the service department at sun was that " I wouldn't drive that car if I were you because it might blow up". I knew that gm would never admit to any of this so I taped most of my conversations with all of their head officials and stored numerous copies with two separate attorney's, my family and one cousin who works for the media in case anything were to happen. It was admitted to me a gm that this was not the first time and it wouldn't be the last. I have taken my Yukon off the road and parked it away from anything flammable with very little gas in the tank (well, that was how gm left it. I have proof that general motors is fully aware that Yukons might start blowing up yet I haven't seen a recall and I have a $46,000. 00 pile of rubbish in my driveway.