One of the cool things about owning a Tesla is that you might wake up one morning, start your car and discover totally new features. That's because Tesla's computer system is designed to automatically update wirelessly using a feature known as "over-the-air" updates. One of its silliest updates in recent memory was implemented in December 2018. It included several new updates, known as Easter eggs, including an emissions testing mode.
Elon Musk did mention the new features before their release, and hinted in a tweet something at "toilet humor."
The emissions testing mode was a bit of a surprise to most Tesla owners. As fully electric vehicles, Teslas are exempt from state emissions testing since they don't produce the same kinds of harmful fumes as gas- and diesel-powered vehicles. So one can imagine how a new — and previously unannounced — emissions testing mode would raise some eyebrows.
As it turns out, said emissions testing mode has nothing to do with emissions testing and instead everything to do with farting. The new feature lets drivers "fart" on command, or play the fart sounds using their turn signal. It's a silly way to prank car passengers, and there are six different fart sounds to choose from, including: Not a Fart, Short Shorts Rapper, Falcon Heavy, Ludicrous Fart, Neurastink, and Boring Fart, all references to Elon Musk's various professional and extracurricular pursuits. (That last one is a play on the Boring Company's Not a Flamethrower.) Choose I'm So Random, and the car will pick a fart sound, well, at random.
So, there you have it. Those six-figure Teslas can now play six different fart sounds on command.
The new update also included a romance mode, which plays a video of roaring fire on the car's infotainment display. It also boosts the cabin temperature and cues up some mood music. Perfect for enhancing those warm-and-fuzzy feelings of superiority.
The pole position mode pops up vintage racing games and can only be accessed when the car is in park. It's a cool feature, but why would any Tesla owner pretend to drive a race car in a video game when they basically drive a real one?