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 after its introduction, with the largest share, 57%, in the US. With an estimated 12,700 units delivered during the fourth quarter of 2016, sales totaled about 50,931 units in 2016, making the Model S the world's top selling plug-in car for the second year running. The United States had about 29,156 units delivered, followed by China with 6,334, surpassing Norway as the largest Model S overseas market. , about 158,159 Model S cars have been sold worldwide since its introduction, making the Model S the world's second best-selling plug-in electric car ever after the Nissan Leaf (250,000), and ahead of