I just noticed the Model X70D now is the X75D with a small price increase. Could the S70D soon be upgraded to S75D? Here is my take: 1) Tesla is already putting the 75KWh battery in new new Model S 70/D models, but software limiting it to 70KWh for now. Once the software is finalized, they will start selling the S70/D as S75/D and of course increase the price. Current S70/D owners will never see the full 75KWh but just have a slight better pack than the older S70/D owners. 2) Tesla is trying to sell up all the left over 70KWh batteries and once they are out, they will phase the 70KWh battery out just like the transition from 85KWh battery to 90KWh battery. What do you think? I'll add a third. 3) No changes to the packs. Tesla will make a 70KWh pack for the model and a 75KWh pack for the Model X.