http://files.shareholder.com/downloads/Q4'14 Shareholder Letter
Model X to begin shipping in six months
...we entered 2015with over 10,000 orders for Model S andalmost 20,000 reservations for Model X.
Model X development remains on plan for initial customerdeliveries starting in Q3. Over 30 Beta Model X vehicles havebeen built and are undergoing extensive testing. The results ofinitial Beta phase crash testing have given us confidence thatModel X will live up to the very high safety standard set by Model S. In March, we will start building and testing a small fleet ofRelease Candidate Model X vehicles that will be very close to the final production-intent design. Finally, since Model S andModel X will share the same dual motor powertrain, the introduction of All-Wheel Drive Dual Motor Model S helps reduce someof the risk that would otherwise have been associated with the launch and production ramp of Model X.