Corporate sound design, aka more money than sense

This is a very special video of Audi being taken for a ride then making a video to promote the fact:

And here, an option to have your Toyota Prius fitted with a speaker so that you don’t run people over, presented in classic Japanese style:
http://www.engadget.com/2010/08/24/prius-gets-optional-underhood-zombie-deterring-noisemaker-soun/

And yet more: The Mercedes Benz sound design team talks about how it designs the car acoustics to make the identical engine sound different between it’s family sedan and it’s sport coupĂ© model. (I have been wittering on about this for years and finally have some proof that they’re doing it!)

And, the design of the indicator sounds:

Which finally led me to:

Oh dear