Yesterday, Tesla Model 3 officially delivered the first 30 vehicles in the United States. The first owner was Musk, and there were 29 Tesla employees left. The Model 3 starts at a price of 35,000 U.S. dollars (about 240,000 U.S. dollars), has a top speed of 210 kilometers/hour, runs for 350 kilometers, is topped with 44,000 U.S. dollars (about 296,000 U.S. dollars), and lasts 499 kilometers. Tesla's appearance and interior improvements, as well as a detail that caused the outside world to notice, this car does not send the key, or did not design the key at all. Note that what we are talking about here is not "keyless start". The Tesla Model 3 does not have any conventional key system. It completely relies on the low-power Bluetooth unlocking of smart phones. Of course, the Model 3 sent a pair of NFC plastic cards, which can also be used to unlock and start the car when the smartphone is not in use.