You guys are reading the constraint list incorrectly.........The constraint list means the number available in the country for that order cycle. So if you wanted Z51 for example there was 120 cars that could be build for Canada and get the Z51 package. So in a month when 240 C8's are build for delivery in Canada there is 120 z51 packages available so I put in for it and I got it as that is a high number because it is for all of the dealer orders as well as custom orders for people like us. If 121 people wanted it then one person would not get their car build and their order would be rejected by GM unless they had a secondary order that had non Z51 as a back up. Your dealership has the ability to put in a first selection built car and a second if they so choose for each person. many choose to go to the next person in line if they don't feel your specific built car has a high chance of getting accepted by GM So if you have the 5VM Carbon Fiber aero on your build and there is zero allotted for Canada as there was my order week then your dealership would go to the next person in the list and see if they have the aero package listed as part of their build. So this constraint list is for the Entire month for all of Canadian orders so a lot of orders may have been skipped over if you wanted any black wheels other than the 5 star as there is zero black wheels other than those for the entire month for Canada. Dealerships could easily call and ask if you would be willing to change your order on those wheels or they might just go to th enext in line who hasn't asked for them. Remember either way they get a order placed and sell a car. Doesn't matter if it's to you or the next guys, the big dealerships are about volume, and the more they sell the more they get for allocations don't forget that!