In addition to some notes about the Tesla Semi battery and the Tesla Semi pilot production line “coming along,” we also learned this week that the Model 3 and Model Y packs will soon be “universal” — the same for both of them. I actually thought they were the same already (I guess I just assumed that), but it appears they have been somewhat different so far. It seems that the differences come down to manufacturing improvements Tesla (and/or Panasonic) has made for the Model Y batteries.