The problem is that this is constantly in flux. What I just went through with my Touring order is drastically different from what most folks experienced with their GTs this summer. And the DE owners before that had a different experience, too.
It’s a young company, still working on its process. Things are bound to be different for Pure customers as well.
Initial Reservation (Confirm Design)
Finalize Design (Order Confirmation)
Enter General Assembly
Finish Production
VIN Assignment (At or near end of production)
Shipment to Nearest Service Center
PDI
Payment/Financing (More about personal preference, but many have suggested to wait until hearing shipment to Service Center, Delivery at Service Center, or Post-PDI for Home Delivery)
Delivery
This was my recent experience. Hope it helps ease the angst and uncertainty. Things move quick once the car ships to a service center.