The Tesla Model X is a battery electric mid-size luxury crossover SUV produced by Tesla, Inc. since 2015. Developed from the full-sized sedan platform of the Tesla Model S, the vehicle is notable in that it uses falcon-wing doors for passenger access. The Model X has an EPA size class as an SUV, and shares around 30 percent of its content with the Model S, half of the originally planned 60 percent, and weighs about 10 percent more. Both the Model X and Model S are produced at the Tesla Factory in Fremont, California. The prototype was unveiled at Tesla's design studios in Hawthorne, California on February 9, 2012. First deliveries of the Model X began in September 2015. After one full year on the market, in 2016, the Model X ranked seventh among the world's best-selling plug-in cars. As of February 19, 2023, the Model X is only available as the Long Range with an estimated EPA range of and the Plaid model with an estimated EPA range of . Both come with Tesla's Autopilot driver assistance system. History Initially, Tesla planned for deliveries to commence in early 2014. However, in February 2013, the company announced that deliveries had been rescheduled to begin by late 2014 in order to achieve its production target of 20,000 Model S cars in 2013. In November 2013, Tesla said it expected to begin Model X high volume production the second quarter of 2015. In November 2014, Tesla again delayed and announced that Model X deliveries would begin in the third quarter of 2015. Deliveries began on September 29, 2015. Among the reasons for delay were problems with the falcon-wing doors and cooling the motors when hauling trailers. In 2016, the company filed a lawsuit against Swiss hydraulics firm Hoerbiger Holding for not producing satisfactory falcon-wing doors for the Model X. Tesla claimed the doors suffered from oil leakage and overheating. Many believe this is one of the reasons for the delay of the Model X. The lawsuit was settled in September 2016. On July 13, 2016, Tesla introduced its Model X 60D, which is slightly lower priced than the Model X's starting price. The Model X 60D has a range and can accelerate from in 6 seconds, with a top speed of . The battery capacity in the Model X 60D is 75 kWh but has been software restricted to 60 kWh. Post