The comparison with the i3 is ludicrous and not worth the time of day. What we have here is a case of congenital brand addiction, which seems to afflict many BMW owners.
The real test for me what BMW owners who've driven the Model S think. My brother is a long-time BMW owner -- over the last 25 years he's probably owned 5 or 6, including an M5 or two. When he drove my Model S he acknowledged that it was a better car in almost every way. Over the time he's had BMWs his stories about his experiences with BMW dealers and service are legion, and not in a positive way. When I tell him about Tesla service and reliability he's amazed. He's just not ready for a BEV. I'm working on him, believe me.
The other day I pulled into a Starbucks, and as always, the car was getting a lot of attention and questions. One of the inquirers was an M5 owner, and I let him do a 10 minute test drive. When we returned to the Starbucks he said to his wife: "Time to sell the M5." That the apple I want to compare and it's enough for me