I've updated and made a simpler chart in an attempt to show the current differences between 2015 P90D and 2016 P90D:
The big difference you can see is how much Max Batt Pwr ON improves the 2016 P90D which has the new battery pack. Previously Max Batt Pwr ON was mostly just a warm-up of the battery. Almost the same performance could be achieved with the Max Batt Pwr OFF and battery at temperature from driving. While I think that recent software allows Max Batt Pwr ON to enable a little extra power beyond simple temp in the 2015 P90D, it is insignificant compared to the big jump it enables with 2016 P90D.
Hopefully we can collect more data from the 2016 P90D to fill out the chart.