GMH advised all suppliers at their supplier meeting last November that all vehicle sales would be allocated to dealers to avoid any variance in their production plans. They do not want shortage or surplus of parts when they stop. There is a planned production and they know sales will be at a demand so they can't see the need to discount. Obviously they can get the best price or increase some models. Any vehicles left over at the end of production will end up selling before new models arrive.
It was pretty clear that they wouldn't budge from their production schedule. The only one to suffer was "CALAIS" models where they are dropping some. Utes and Wagons were not affected.