[71bw]

>I don't know if this makes great sense as an example, but, say you're travelling from the UK to France (or USA to Mexico?) and want to have your speedometer show km/h rather than miles/hour. That's not a setting which should have a switch, but may be something useful.

Three presses in a Mercedes on its speedometer screen.

[vel0city]

> Three presses in a Mercedes on its speedometer screen

> speedometer screen

> screen

So a setting behind a screen instead of a dedicated hardware button/switch/toggle for it.

[71bw]

You use the dedicated hardware buttons for controlling car options on the steering wheel.

I don't see why in God's name would you ever need that as a hardware switch.

[vel0city]

Many here argue there should be no screens in cars. The screen has some state you'll need to at least look at to get a bearing for where in the menu you'll need to navigate to. But most people aren't going to memorize the menu layouts for settings they rarely use, meaning they'll be looking at the screen when they interact with it.