Here's some things I don't think they accounted for (as someone who works around hgvs):<br>The white noise is a horrible sound to a lot of people, so the reversing horn gets disabled alot more.<br>Because its a more natural sound it can sound like a lot of things, something scraping, or a pneumatic tool, it blends in.<br>Lastly everyone knows the beeping is a vehicle reversing, not many know about this new sound even this long after it changed.