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
Plug-in electric vehicles in the United States 75% in three years. In contrast, most conventionally powered vehicles in the same period depreciate between 45% to 50% . The Tesla Model S is more like conventional cars, with three-year depreciation of about 40%. And plug-in hybrids depreciate less than all-electric cars but still depreciate faster than conventionally powered cars. Researchers from the University of California, Davis conducted a study to identify the factors influencing the decision to adopt high-end battery electric vehicles (BEV), such as the Tesla Model S, as these vehicles are remarkably different from mainstream BEVs. Based on a questionnaire responded by 539 high-end adopters and