I see this come up in topics, but it would be nice to have one place for us to post what we see as capacity below 0% or ---% for the Generation 1 Leaf.
For example, in my 2020 SL Plus, going by LeafSpy, Turtle mode kicks in at 1.0 kWh of remaining battery and full shutdown at 0.7 kWh remaining. I'll have to figure out the math for GIDs on that later and update this topic. Before It hits turtle mode though, at 0% Dash reading, there is still 8 kWh of capacity left when watching it in LeafSpy and it is usable range. I've driven down the extra 20-30 miles just to see myself.
In my 2013 SV, turtle mode hit at 0.5 kWh and shutdown was 0.3 kWh (again, will have to figure out the GIDs math and update this). When the dash ---%, I recall I still had about 1.0 kWH of remaining power, so a very small buffer for range, but one could still squeeze maybe 4 or 5 more miles out of it when driving slow.
I don't know much about the 30 or 40 kWh packs and how much is left on the battery past 0%, but I would certainly like to hear what others have experienced.