Thanks, Kuda. I know model year production wraps in June/July of the calendar year, then the next calendar year model production starts up in July/August.
They ramp down in early June, and start up by mid July.
Like I said earlier, they purposefully do not launch all plants at the same time, they stagger them so the design engineers can support more than one launch if needed. But they pretty much get the new lines running between mid June and mid July. Then ramp up the line speed gradually as the operators get more familiar with the new changes.
If it's a brand new vehicle, they have been known to hold them for a month while they complete evaluating them to make sure that they are good enough to ship to customers. Then you see them in Aug.
The first few vehicles are sent to design engineering and the proving grounds so they can be evaluated for any problems before sending them to customers.
They also get the first few engines from the engine plant and put them on dynos to make sure that they will hold together.
