So what are you saying: you think the car will park on it's own, you just don't know when or you don't think it will ever park on it's own? You don't think they will cover 100% of supercharging with solar in a few years (with solar over those superchargers where it makes sense + some offsetting at the Gigafactory or Fremont), or you just don't know when?
So with regards to the X the question becomes: do you think it will be great when it gets released, or later? Because the car is coming, soon. So either it's great from the start, or gets great after a while, or never gets great. In the second and third case Elon is lying now, which i doubt he is (he has also numerous times talked about how important it is for him that the Model X is right from the start, with no issues).