I wouldn't mind having the option of a car's voice assistant (exclusive for the car, where I have a signed contract with the manufacturer stating that what happens in the car stays in the car and doesn't get sold for ads). But I'd still very much prefer to have a dedicated physical button option for any basic function that a driver might use while driving. Not a button that navigates through a menu but something where I can use muscle memory and have the guarantee that it does what I expected without taking my eyes off the road for a second.

So for example the volume up button should always be a volume up button. They shouldn't change function because in some other menu I picked "temperature" instead of "volume".

I bought an Amazon Alexa Auto so that I can control Spotify via voice: https://youtu.be/WBUKw4801HE

But I can do that now using the voice commands on the v10 update. I know there's a guy who tinkers with the firmware code and found that the voice commands for temp and other settings are dormant on a previous update.

https://twitter.com/greentheonly/status/1112574502678994944

'Alexa, set the temprature to seventy degrees' (system hears 'sevde-gree' due to road noise)

"Okay Sizzle, switching to Centigrade temperature scale"

'No! Alexa, switch to Fahrenheit' (system hears 'far ride')

"Okay Sizzle, going into long-range mode" turns off AC, music, etc

Voice controls in a car sounds good in theory but horrible in practice. I remember someone showing me one of the older pre smart assistant systems, him having to shout 'call X' 3 times and in the end it called the work instead of personal number

Frankly, if you're willing to put a bug in your own car to get voice integration that's only semi-functional when you're connected to the internet, your value system is very different from mine. We can argue objective pros and cons but the real truth is we want very different things, and we're not likely to find much common ground.