Interesting read via Electrek about yesterday's media walkthrough at the Gigafactory.... Tesla’s plan for Gigafactory vehicle battery pack rollout and why it matters The part that is most interesting (at least in this context): "Even though the battery cells themselves will be bigger than the ones currently used (18650 to 20700), the battery packs will be smaller thanks to better packaging and cooling. At the Gigafactory event yesterday, Elon Musk said that the first vehicle battery packs will come out of the factory in about 6 months and will be used as development battery pack for the Model 3." So, ostensibly, at least what I'm getting out of this, is that a 75kWh pack using the new Gigafactory-built architecture would be smaller than the current packs being used in the S and X. With the improvement in drag coefficient, and the loss of a few hundred pounds here and there..... I really think they can get to 300mi on the "max range" Model 3.