I think GM and it's defunk GEM did the heavy lifting so Tesla could exist and each electric car manufacturer since makes it easier for those that follow. Living in San Carlos CA. while being surrounded by the team that built the prototype for the Model S in what is now Devils Canyon brewery was enlightening. I remember at lunch one day I over heard the former designer from Mazda/Ford discussing what Teslas would sound like and I never thought about the lack of sound from an electric. The list of eletric manufactures keeps on growing but the emphasis on the huge Chinese market is smart by SF .I still think Tesla has the head start but the one issue is local news obsession with Tesla failing.The idea that a Tesla catching fire is news when petroleum vehicle's blow up all the time is forgotten. I trust in Tesla as an aspirational brand but it can't go to far down market unless Tesla builds a sub brand like BMW did with Mini. Minus a world wide recession Tesla should be golden.