Here is some video of the Tesla assembly process in Fremont, CA:
http://www.youtube.com/embed/8_lfxPI5ObM?rel=0
I think we are supposed to be astounded with the level of automation in use; in reality the number of robots shown and automated equipment is pretty typical in GM facilities today.
GM's Bowling Green plant (Corvette production) for comparison purposes:
http://www.youtube.com/watch?v=CTe2wnfsALo#t=191
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