Tesla’s Emissions Testing Mode lets drivers choose different fart sounds from the car’s touchscreen, giving electric-car owners a good sense of Elon Musk’s sense of toilet humor. There’s “Short Shorts Ripper,” “Falcon Heavy,” Ludicrous Fart,” Neurastink,” “Boring Fart,” and “Not a Fart,” all of which are named after some Musky in-joke. (The last one is a play on the Boring Company’s Not a Flamethrower.) Should drivers find it impossible to choose between all the sound effects, the “I’m so random” will shuffle through them automatically.
Farting functionality isn’t the only whimsical edition to the software. At this point, Tesla's in-car software comes with a variety of Easter eggs for users to unlock, including games, special lighting effects, and more. In addition to all the flatulence, this update includes a Romance Mode that brings up video of a cozy, crackling fire on the central console and prompts the car to blast the heat and turn on some sensual tunes.