Have you got the fart update yet? Hehawhawhawheeheee!
This is brilliant! I think it's like surgical mind-control advertising. You see, Tesla has a problem. Just about everyone wants a Tesla, even those who say they don't. And if you have read Aesop's Fables, you know what the term "sour grapes" refers to. The problem is, Tesla are somewhat expensive, at least the upfront cost - not everyone can swing it which tends to make Tesla seem kind of high faluting, stodgy, for rich bastards. People that want a Tesla but think they can't afford one need an excuse not to buy one. So they bad-mouth them, call them "toys for the rich", etc. Fart mode breaks right through all that stodgy, toys for the rich perception and creates the car for the common man, most men don't "pass gas", they "fart". Women too. Who can badmouth a car with "fart mode" as a toy for rich people? You have to chuckle.
This is not about giving owners another valuable software upgrade, it's about surgical advertising. And all publicity is good publicity.