It was
Porsche; that spelling was in US top 1000 for a couple years in the late 80s (around when I was born).
It's not my thing, but I didn't hate it, and I don't remember her getting teased relentlessly for it or anything.
...and if I'm basing the decision off of etymology, I like
Porsche more than
Portia.
This message was edited 2/3/2021, 1:36 PM