So just a follow up on the battery situation. The battery has finally be properly replaced as of April 15th. Took a while, this all started November 26th, 2021. It took them until middle February to get the wrong battery pack installed. Then until April 15th to get the correct battery installed. However, the result is very positive. The car is fixed, it supercharges WAY better than the old 85 pack. And range has improved as well. Seems anecdotal, but my father claims the car has significantly more acceleration and power than it ever had... so I guess he is happy.
So it's officially a 2013 P90+. I assume there are a few P90+'s out there, but it's still a bit of a unicorn.