Tesla Model X Model X deliveries had gone to US customers. Nevertheless, in January 2016 a Tesla car other than the Model S was registered in Germany and a Tesla Model X was sighted driving there with a license plate from Ingolstadt. Since the Audi headquarters are located in Ingolstadt, this led to speculation that Audi has acquired a Tesla Model X as part of its effort to develop its own battery-electric SUV. Tesla produced 507 Model X in the fourth quarter of 2015, of which 206 were delivered to customers. Model X sales totaled 2,400 units during the first quarter of 2016.
Plug-in electric vehicles in the United States Fusion Energi with 15,938, and the Nissan Leaf with 14,006. The top five best-selling models in the U.S. accounted for about 65% of total plug-in cars in 2016. Sales in 2017 were led by the Tesla Model S with about 26,500 units, the top selling plug-in car for the third year running, followed by the Chevrolet Bolt (23,297), Tesla Model X (~21,700), Toyota Prius Prime (20,936), and the Chevrolet Volt (20,349), together accounting for 58% of total sales in 2017. During 2011, all-electric cars (10,064 units) oversold plug-in hybrids (7,671 units), but increased Volt sales, together with the introduction of