I've started a new thread as this discussion is getting mixed up with the model 3 thread, best to start fresh and keep it simple. Firstly my July 2015 built car has no MCU issues, it would be nice if it operated faster but such is life. If I do have one concern with a car that's been incredibly reliable in over 4 years/190,000kms it's an impending failure of the touchscreen and/or MCU, if the latest hardware that had similar abilities to 2019 cars was available I would be comfortable paying $4500 to replace items out of warranty, the fact that replacing a 2015 system with the modern MCU is by all accounts nowhere near as easy as Elon makes out and could be ages away will be more than irritating if I have to replace hardware beforehand. For those that know far more about this tech than me, how do you see the future of replacement MCUs for older cars? Keep the discussion friendly and easy to understand, no one likes a smart a##s.