Tesla Model S 60
The Model X 60D's fate was sealed before it ever arrived.
To make way for the upcoming Model 3, and to "simplify the order process" for their customers, Tesla is eliminating its Model S 60 and 60D sedans. However, if you still want one, the automaker is giving you a month to place your order.
Tesla released its least expensive - 60 line - a year ago. The vehicles were set to utilize a 75 kWh battery, which is software limited to ~60 kWh. For a mere ~$6,500, buyers could choose to unlock the battery's full potential at the point of purchase. After the fact, it would cost ~$10,000.
This effort by Tesla came along to assure that the company had an "affordable" model available, due to the huge interest in the Model 3, and the fact that the upcoming offering wouldn't arrive for quite some time.
We have been aware for awhile now that this decision was imminent. Tesla announced a software limited Model X 60D back in July, and secretly discontinued the offering before it was ever arrived. Tesla realized that very few people were taking advantage of these software limited vehicles, and instead were splurging for the 75 kWh equivalent.
Tesla's official communication on the matter is as follows:
Tesla will officially discontinue the Model S 60 and 60D on April 17, 2017.