So, I need some help/advice...
I posted earlier in this thread and will try to summarize. Apologies for the long post.
I recently took delivery of a "CPO" 2016 Model S P90DL. Car was perfect albeit a few bugs (lag on initial push to talk, sunroof rattle etc).
The car was running 2018.50.6 and the SC said that the latest firmware fixed the lag issue, so they were pushing it out to my car. About 10 minutes later, the car got 2019.8.3.
Needless to say, that did not fix the issue. Instead, it broke Ludicrous + mode (quite an expensive option on this car). With that not working, launch mode doesn't work either. They then pushed 2019.8.4 thinking it would fix it but with no change.
I took my car in on Monday for its scheduled appointment to address this. SC called today to tell me my car was ready. I went to pick it up and they have not addressed Ludicrous+/Launch mode and said that (verbatim) "it will probably get fixed in a future firmware update".
I left my car at the SC and told them that was unacceptable and that they need to remediate it seeing as it was working fine prior to the firmware update. They said seeing as there were no technicians there for the day, they would get back to me tomorrow morning.
I'm extremely disappointed and would like to hear some perspective seeing as I'm a bit of a hardass and might have unrealistic expectations. I paid a LOT of extra money for those features and feel that they should work as intended.