Hylton...I believe the issue isn't about building sold vs. unsold orders. It really has to do with the allocation process. Dealers control which orders go into the system when, based on their available allocations to be built per week, not GM. It is all about how the dealers use their allocation with regards to selling them as sold orders vs. using them for dealer stock. For example, look at Classic Chevy in Grapevine, TX. They had something like 65 cars available in their initial allocation and then proceeded to "sell" well over 100 pre-orders. Everyone of those outside of the initial allocation have quite a long wait before they'll see their cars. GM can't magically push all the sold orders for Classic to the top of the queue and take away building non-sold orders from dealers that wanted to use their allocation for lot cars.
You might find this link interesting (for Michigan at least):
http://law.onecle.com/michigan/445-t...-445-1574.html