I think there is a complete disconnect in the comments being made and what the OP was putting forward as a concern and an important safety topic. Forgive me if I am repeating something already mentioned, I have not read through all 8 pages of this thread.
OP is concerned that there are no gauges or references for driving - ie. speedometer. This is a serious safety issue! If I think I am driving at 65mph, but in reality I'm going 90....that is a concern because I neglected to have the speedometer view open on the central display. try to talk your way out of a ticket on that one.
In addition, there is something to be said about having physical buttons or switches for safety related items (headlights, turn signals, horn). Should there be a software malfunction, you can still drive your vehicle and get to a safe spot without endangering others. That is why ALL vehicles have a manually operated rearview mirror.....it is not due to cost cutting or lack of development.
I am not sure if anyone can identify a road legal vehicle that is missing basic buttons/switches required for driving (speedometer, headlight switch, turn signals, horn). When the Model 3 was released with the lack of instrument cluster, there was the assumption that all of this critical information would be in a HUD......now that we do not have that, are we opening the door for markets or governments to refuse their sale, or will it open the door for other manufacturers to cost cut and remove these necessities.