A very well written, short thought provoking article challenging Tesla and Elon Musk’s position on skipping pre-production prototypes Likely it is volume production that will be Musk and Tesla’s Achilles Heal ? https://www.forbes.com/sites/bertelschmitt/2017/04/25/teslas-pushing-of-production-boundaries-makes-large-carmakers-yawn/#4331d9b948ba