I've owned six Mazda vehicles over the past 30 years. Current owner of a 2016 CX-9. The stock behaviour was that the touchscreen doesn't accept touches unless t

I've owned six Mazda vehicles over the past 30 years. Current owner of a 2016 CX-9. The stock behaviour was that the touchscreen doesn't accept touches unless the vehicle is stopped -- though it doesn't require you to put the vehicle in park. Also, the vehicle has a heads-up-display projected on the windshield. The original HUD included a graphical tachometer so you could see the revs which has limited value except it looked cool and gave you some indication on when you were in boost. In a future update Mazda removed the graphical tach in the HUD citing safety as they felt the constant animating tach in the driver's field of view was a distraction. But, the tach remains displayed if you had it turned on before the update. The voice command functionality is okay, including for the mediocre built-in navigation, once you learn the specific phrases and commands. Last fall I upgraded to Apple CarPlay and the behaviour is the same. Touch input only works when the vehicle is stopped. There was a rumour that one of the reasons why CarPlay took so long to come to Mazda vehicles was because Mazda wanted integration with it's rotary command nob, back button, and other function buttons around the knob and on the steering wheel. Not sure if it's true, but I will say that navigating CarPlay with the knob is just fine when driving, and the physical back button allows me to navigate to the previous screen regardless of whether the previous screen is a CarPlay screen or one of the Mazda screens, which is really great. I know some Mazda owners were upset with these limitations, complaining that it prevented the passenger from operating the screen, but that seems like a corner case.