Instead of relying on touch-sensitive buttons, a new iteration of Tesla's futuristic yoke steering wheel in the Model S and Model X could be equipped with a regular horn.
https://www.notebookcheck.net/Leak-Tesla-might-add-a-regular-horn-to-its-butterfly-steering-wheel-in-the-Model-S-and-Model-X.595494.0.html
Regular turn signal switch would most likely be praised even more :-D
It's so bad in a design standpoint, it hurt my brain ... a turn signal as a touch interface on a rotating surface ... what were they thinking.
Horn on the other hand seems like a minute issue.