Which means to me, yes a bit of Manufacturing R&D will be accomplished with each Px car. So that also says to me each Px may not be exactly alike while also built more or less serially one at a time. Seeing how long this process draws out may lend itself to estimating the actual start date of production..
agree .... I tend to believe that there will be lessons to learn from the P5 that will need to be incorporated into the P6 .... same with lessons learned with the P6 being incorporated into the P7 .... as some point they will settle on the build and then the line will be setup to produce them