I am all in on Model 3, but one thing has confused me from the jump: autopilot. From what I understand ALL Model 3's will have the autopilot and full automation hardware, but you have to pay to unlock the features. So my questions are 1. is that the case or is there special hardware that the extra $5,000 goes to cover? and 2. if all are outfitted with it, what is the 'penalty' for paying for this down the road? For someone who lives in Texas, whose legislature is likely to be the last to allow full automation, I'm wondering if I'd ever even see the benefit for this Model 3 I buy. If anyone has any info or experience in adding these features after the fact, it would be appreciated.