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
Model car & Gowland 2007). On the heels of the promotional model business, Aluminum Model Toys or AMT introduced model car kits in 1957. Jo-Han, Revell and Monogram also started producing model car kits about this same time. Most of these were known as "annual" kits, and were the unassembled kit version of the promotional models or 'promos' representing the new cars that were introduced at the beginning of each model year. As early as 1962, avid British collector Cecil Gibson had even written a book on plastic model cars (Gibson 1962). By the mid-1960s, plastic model kits had become more plentiful