I was surprised by seeing
I was surprised by seeing this info as well. And it is complicated more by the fact that the Model Y with the 2170 battery pack has an 80.5kWh capacity, and the 4680 pack Model Y has a 50 kWh capacity. Of course once Tesla fills the pack with 4680s in a 80kWh capacity, it should have a range of around 425 miles! But will the pack also weigh 50% more? I don't think so, but the weight discrepancy does look like a mystery for now.