Lucid and Tesla aren't exactly the friendliest of car brands. Lucid's founder and former CEO Peter Rawlinson was the engineer behind the brilliance of the Tesla Model S. After he formed his own company, the two brands have become direct rivals. So it's funny to watch a Lucid Gravity charge up a Tesla Model 3, using the NACS charging port that Tesla made popular. However, Lucid's vehicle-to-vehicle charging system doesn't discriminate against the cars plugged into it. It charges blindly, as it should.
The Lucid Gravity's vehicle-to-vehicle charging system is called RangeXchange and uses its native NACS port to charge other NACS-equipped vehicles. There's a special cable and adapter in the Gravity's trunk designed for it, and it's pretty simple to use. You plug one end of the cable into the Lucid's charge port and the lights will turn blue and blink. Inside, the screen will say "RangeXchange Ready." The screen will then ask you to set your desired battery reserve, so that it won't drop its own state of charge under whatever you set it to.