I purchased in October 2017, an S100D, with a $5000 advance pay (less $1000 credit) for the enhanced autopilot and was told it was projected to be released in March 2018. Not only has March 2018 come and gone, but I have been advised that there is no expectation as to when this product for which I paid, will be available--likely not in 2018. Huh? I have no problem with the delay, but I do object to the false and misleading representation. I enjoy driving the car, but have found that there is zero chance of it remotely hitting the 335 mile range represented; that i can live with--the false promise/assurance is not a reasonable error. . . .