tl;dr version:

Tesla's huge ambitions are to sell electric cars to the mass market. Becoming a new car manufacturer from the ground up is unbelievably hard. They are using the classic Silicon Valley approach: start with early adopters that just want a cool new toy, then cross the chasm to mainstream customers... http://tldr.io/tldrs/51115df9de23f156580000a8/teslas-ingenio...