As of December 2016 [update], cumulative sales totaled 25,524 units.
Event text from Wikipedia: “Tesla Model X” (linked citation above)
A tweet by Musk in December 2016 said that a second Roadster was in Tesla's plans, but still "some years away".
Event text from Wikipedia: “Tesla Roadster (second generation)” (linked citation above)
Tesla also used the term Enhanced Autopilot (EAP) to refer to planned capabilities that would be coming to HW2 vehicles - the signature EAP feature announced…
Tesla also used the term Enhanced Autopilot (EAP) to refer to planned capabilities that would be coming to HW2 vehicles - the signature EAP feature announced in December 2016 was "Navigate on Autopilot", which allows machine-controlled driving on controlled-access highways from on-ramp to off-ramp, including the abilities to change lanes without driver input, transition from one freeway to another, and exit.
Event text from Wikipedia: “Tesla Autopilot” (linked citation above)
SolarCity started hiring for the facility in December 2016.
Event text from Wikipedia: “SolarCity” (linked citation above)
Whereas the Roadster was delayed by 9 months, the Model S more than six months, and the Model X more than 18 months, analysts estimated in December 2016 that…
Whereas the Roadster was delayed by 9 months, the Model S more than six months, and the Model X more than 18 months, analysts estimated in December 2016 that the Model 3 production preparation was on schedule for the second half of 2017.
Event text from Wikipedia: “Tesla Fremont Factory” (linked citation above)