All this discussion on the Model S 70D has me thinking. If the Model S 60 was physically the same size battery as the 85 and it had fewer cells in it leaving empty space. Perhaps the physical size of it could be reduced and the old 60kWh battery could fit in the base Model 3. The performance versions of the Model 3 could be the new chemistry and have more kWh in the same space as the new 60kWh battery. Thoughts ?