I'm a long time lurker on this thread and a v1 P90DL owner. Ordered in August 2015 before the original Motor Trend article so the 10.9 number had no impact on my decision. It was a little annoying to have to explain to people at the track that I would not be running 10.9s (although it was easy to explain the situation to track people back then, just say "ringer" and they say "oh, that sucks").
My best pass to date is 11.39 with a 60' time of 1.72, so my biggest problem is finding a better track and getting a decent launch off the line.
There are two things about this situation that I find frustrating:
Tesla has never publicly acknowledged that there are two different P90DL versions. A peak power difference near 10% is a huge amount! This is going to cause problems in the CPO market later on because there is no officially sanctioned way to know which car is which.
I would like to know how many dollars it would cost to upgrade my v1. Running 10.80 is absolutely bonkers and opens the door to a 10.79 under perfect conditions. Right now the price tag is "buy another P90DL" which is too high, but if they offered an upgrade I would give it serious consideration.