Okay, I had a third drive (in the Leaf) over 100 miles - ~111 miles (corrected) on 23.0kWh, so a new distance record for me.
It was just a tick higher consumption than the previous low - 207.24Wh/mile vs 206.96.
For some reason, the range remaining display goes to "---" flashing after I got down to 9 miles left. I don't know what is up with that.