Here are my thoughts about the Model 3 reservation plan:
+ $1000 is low. Musk wants to optimize the total number of units reserved, not aggregate dollars deposited.
+ Elimination of Signature series. Tesla may be trying to overcome prior elitism associated with the brand. This is a people's car.
+ Initial new features on the Model 3 will be minimal. This aids in simplifying ramp up.
+ New feature will be added to the Model 3 in subsequent years. This keeps the model line fresh and in ever increasing demand for many years to come.
+ Limited access to placing reservations on March 31. This forces people into stores which should give birth to near term Model S sales. But also this limits cashflow in Q1. The bulk of cash flow will come in Q2.
People's Model 3 Hypothesis: Tesla will begin with the base model at $35k in 2017 and progressively add higher end options.
This hypothesis is a reversal of what we see with the Model X where they have begun with the high end version and will progressively offer more affordable versions. So the Model X roll out is quite elitist. By contrast, the Model 3 can become the People's Tesla. Customers will delight to see how advanced the car can become over time. So there will be large exponential growth in demand, and ASP and GM for the Model 3 will increase over time.
Additionally I think a high number of reservations creates a mandate for rapid scaling of production. Tesla should be able to justify to stock and bond investors sufficient capital expansion as needed to fulfill reservations within 12 months of launch. Certainly there is massive capacity in Fremont and the Gigafactory, but if reservations exceed 400k, they will have a mandate. Conversely if reservations are under 200k, Fremont and Gigafactory 1 will clearly suffice. So I think Musk is rolling the dice for a customer mandate to accelerate capacity expansion. So we'll know in Q2 what the people say.