I've seen a couple of videos about the BMW i8 and the fact that it makes imitation engine noise when you step on the pedal. The i8 doesn't let you turn the sound off, and seems like an easy software fix unless they are trying to mask the real sound. I definitely would want the software feature to be able to turn it off, but I could see engine noise being kind of fun to play with like the Tom Tom having different voices for turn by turn directions. One more way for people to individualize their car, and perhaps there's a usefulness for the passengers to know that you just stepped hard on the accelerator or come off the pedal for regen. If Tesla doesn't have the time to develop the sound recordings themselves, maybe the software could be an open platform and open it up to 3rd parties to do the work. I didn't setup a poll, but what do you think the Model 3 should sound like if it did make noise? Here's a link to Bjorn test driving the i8.