Tom Randall:

Tesla just took the most ambitious automotive production timeline since the Ford Model T and moved it up two years.
 The company now plans to produce 500,000 electric cars every year starting in 2018. That’s 10 times the number of vehicles it produced in 2015, and enough to ensure that all 400,000 customers who put down a $1,000 deposit on the forthcoming Model 3 will qualify for a significant U.S. subsidy.