The Leaf has a 24kWh battery pack so that is 1/4 the size of that particular Kolibri. And the Audi A2 that used the Kolibri 99kWh did drive 375 miles (at 55mph average) and had ~18% charge left. That is about 210Wh / mile which is decent, but not great. The theoretical maximum range of the A2 would be 457 miles.
If that pack was used in a car that could do ~150Wh / mile, the maximum range would be 640 miles. At ~135Wh / mile like the SIM-LEI, the range would be 711 miles. And 108 Wh that the Edison2 VLCe got, the range with the Kolibri could be over 850 miles.
So, with a very efficient car, the pack doesn't have to be all that large to go 400+ miles.
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