 A severe production shortfall of 100 kWh battery packs limited the second quarter of 2017 global deliveries to just about 10,000 Model X vehicles, with a slight increase to 11,865 vehicles during the third quarter of 2017.An additional 13,120 units were delivered in the fourth quarter of 2017, for total annual deliveries of 46,535 units globally., cumulative sales since inception totaled about 72,059 units.