CarPlay seems like something that has so much potential but lags behind because of hardware in general. resistive touchscreen that are laggy, having to wait for the rest of the Honda entertainment system to boot, etc.
i almost wish that Apple would partner with Alpine or Kenwood or someone closely and just make a unit that works. (the current ones seem to be half Android Auto, half CarPlay.)
It is a step in the right direction. My Subaru Forrester has 3 displays with three different user interfaces... all poorly thought out ... having Apple design guiding this work is badly needed...