You are mixing everything up. First P1, P2 and P3 are all quite different, each one improving on the next. As stated in the previous message P3 has several new features and improvements I'm not sure why you would assume that all of these new features and improvement should just "work", is that how you engineer things?
Here's a question for you...how long does it take GM to build a car these days? How long did it take 30 years ago?
News 
Market Data 
Discover 
AI
