Full Pack When new is 60.5 kWh on that pack per my memory. I might be wrong, but I do not think so in this case.
Tessie set that number from the average of many new cars, so the number you see is the calculated average that Tessie has seen when new.
The BMS doesnt always start at the correct number though.
I would use 60.5 as the base, but it’s of corse a matter of taste. In this case its so small diff so it doesn’t matter.