As many of you know, myself and a number of others have ordered 2011 GT500s, have received confirmation that they were produced, and then no other information. I've spoken with my dealer, SVT, and Ford customer service, adinfinitum, and no one has given me any more information as to the status of my vehicle, which was supposedly finished on 04/24/2010. Out of frustration, I began researching AAI to find someone in Flatrock, Mi who could provide some explanation. After a number of dead-ends, I was able to talk to someone who seemed knowledgeable. As a caveat, I don't feel comfortable giving out the person's name or phone number, as that would place them in a compromising position with their superiors and I don't want them bombarded with calls from other forum members. They were kind enough to recognize our frustrations and tried to help allay our aggravations. So, let's leave it at that. It seems there IS a quality hold on Mustangs, in general, including our Shelbys. They could not reveal the reason for the hold; however, Ford is working to fix the problem and get them shipped out ASAP. My dealer has told me that when he was in Detroit, last week, he researched the delay and was told it was a faulty Sync- radio module and the plant was replacing same in the Mustangs. This may or may not be the reason, but my dealer is simply passing on what he was told. He is a longtime, personal friend and would not lie to me. I posted this info several days ago. This could explain the slow trickle of vehicles being delivered. They advised there are approximately 4,200 Mustangs sitting on the lot awaiting shipping. They checked my VIN and it has not yet left the factory for the rail yard lot..... Not what I wanted to hear. They estimated the majority of the held cars will be shipped by the end of May. So..... I assume we have a considerable back-up and that will affect cars built after mine, as well. I have no reason to doubt the validity of this information and the person seemed very understanding of our substantial frustration. I'm sorry to be the bearer of this, not so encouraging news, but since Ford has seen fit not to inform its LOYAL, LONGTIME, customers via the customer service line, then at least we now have some inkling of what is going on and can adjust or frustration level, accordingly.