A heads up display. Its such a tech forward car in many respects. I had a HUD in my last 2 leased BMWs and my wife has one in her 2019 X3 as well.
Also, control over more of the car with voice commands (that are not alexa / cortana / google). I should be able to "set the temperature to XX degrees) or turn off and on other features with voice. I feel like thats coming but its taking a looong time.