We have a 2017 Model S and are thinking about replacing it with a new one. Based on what I can find out online, the current Model S (Long Range) will take advantage of the new 250KW chargers but only briefly because of limits inherent in the car battery pack and related systems. So you get the 250KW for a brief period in the bottom to middle of the range. End result is a modest (maybe 20%) improvement in charging speed over a 150KW charger depending on the range of the charge. Now that we have the fast superchargers and a lot more locations, the charging issues come down to charging rate limits inherent in the car systems. Does anyone have any insight into whether any of the new developments that Tesla described at Battery Day will do anything to improve the charge rate over what the current Model S will do? I can speculate as well as anyone so I don't need pure guesswork but if anyone has any actual insight, I would love to hear it.