Muskos tweet said, "As of Monday, Tesla will no longer take orders for the 75 kWh version of the model S & X. If you want that version, order before Sunday evening at Tesla.com," with Monday referring to January 13, 2019. This is a big deal because the second cheapest versions of model S and X are much more expensive than the 75 kWh models. Model S 100D with dual motors and a 100 kWh battery costs $ 94,000, $ 18,000 more than 75D. Model X is even priced at $ 97,000, $ 15,000 more than 75D.