Admittedly naive in these matters, I cannot help be amazed at how far along the car seems to be. Then when I remember that Tesla brought the 'X' to market concurrently, I give up. Anyway, back to my question: is 18 months a realistic schedule from the car we saw yesterday to mass production ? Is the rate limiting step going to be the Fremont or battery factory, rather than the car ? It sure looked that way to me.