The Tesla Model X is a full-sized, all-electric, luxury, crossover SUV made by Tesla Inc. that uses falcon wing doors for access to the second and third row seats. The prototype was unveiled at Tesla’s design studios in Los Angeles on February 9, 2012. The Model X has an official EPA rated 237–295 mi (381–475 km) range and the combined fuel economy equivalent and energy consumption for the AWD P90D was rated at 89 mpg-e (23 kWh/100 km or 39 kWh/100 mi). The Model X was developed from the full-sized sedan platform of the Tesla Model S; both are being produced at the Tesla Factory in Fremont, California. First deliveries of the Model X began in September 2015.As of December 2016, global deliveries totaled more than 25,000 units, and just after one full year on the market, the Model X ranked seventh among the world's best-selling plug-in cars.