After hearing Musk describe in more detail how the future Roadster has achieved its massive range and current capacity (two 100Kwh Model S batteries stacked), I

After hearing Musk describe in more detail how the future Roadster has achieved its massive range and current capacity (two 100Kwh Model S batteries stacked), I've become a lot less confident in Tesla's technology advantage. If it were mostly due to battery tech breakthroughs, the situation would be much different. But no, it's just a heavier, bigger pile of existing batteries. The established manufacturers just need to decide to commit to competing with Tesla. They already have mass production solved, and there doesn't seem to be any major technological breakthrough Tesla owns preventing them from competing on performance.