Tesla Model X According to Tesla Motors, deliveries were lower than expected because production was impacted by severe Model X supplier parts shortages in the first two months of 2016, and because Tesla had been too ambitious in wanting advanced features (committed "hubris"). The first Model X that didn't need corrections was made in April 2016. Sales during the second quarter of 2016 totaled 4,638 units. Although production was up 20% from the previous quarter, the number of vehicles in transit at the end of June 2016 was much higher than expected (5,150 including Model S cars), representing 35.8% of the number of
Tesla Model S and deactivated, and a future Model S software update would stop the vehicle from charging if a short circuit is detected. The National Transport Safety Board (NTSB) has stated that the Tesla’s electric cars are not more prone to fires than other vehicles on the road today. On August 19, 2013, based on NHTSA safety ratings, a Tesla press release claimed that the Model S had achieved the best safety rating of any car ever tested. Tesla stated, "NHTSA does not publish a star rating above 5, however safety levels better than 5 stars "are" captured in the overall Vehicle