Tesla, if you're reading, I hope you would take this suggestion into consideration. It would be easy to implement and would greatly improve customer satisfaction. I want to propose that you add a "milestones" tracking to the My Dashboard page so it shows in chronological order the completion milestones of the car order, paired with auto email as these milestone events occur.
For example, when I was waiting for the VIN assignment, I just had to keep updating my browser everyday to see when something on my configuration would change. I had an expectation that I would get emailed but it didn't happen. When it showed up on the browser, I had no idea when it occurred and may have been days before I saw it. It also overwrote the prior event.
Knowing in time when these events occur is important because the customer has a dependency on it, such as insurance pending a VIN or electrician jobs pending receipt of HPWC.
I'm proposing that you simply show something similar to how UPS or Fedex shows order tracking. Significant events are presented as well as emailed. For example, something like this:
06/01/2014 Order confirmed
06/15/2014 Sourcing parts
06/28/2014 VIN assigned
07/11/2014 HPWC shipped
07/19/2014 Entered the production queue at our factory.