Describing something as "car-like" is begging the question. You are presupposing an objective definition for "car" in order to draw a distinction between things that are cars, and things that are almost cars. The reason such a thing doesn't exist for consciousness is that people believe that the offered definitions for consciousness are illegitimate. It would seem logically weird for me to accept that a term is "real" if it crosses some percentage of public acceptance of the definition, and not real otherwise. I would argue that using that heuristic would make it very obvious that computers are not conscious because it's a stance that practically everybody takes outside of hackernews.