I like the notion of deep-field AR along the lines of Hololens or Magic Leap being possible with a simple pair of passive 3D glasses. This opens a range of poss

I like the notion of deep-field AR along the lines of Hololens or Magic Leap being possible with a simple pair of passive 3D glasses. This opens a range of possibilities, such as a whole new kind of IRL Mario Kart. (However this design would need to be safety-focused in a way that few video games have ever had to, which would likely detract from that particular experience.) But, as another user has pointed out, this would need to be optimized for the viewer's head placement, resulting in a terrible experience for passengers. So the default should be a basic HUD. Facetime will be fine with this. Maps will probably need multiple modes for different levels of immersion based on user preference.