The Future of Auto? Hydrogen, Wearables, and Frickin' Lasers

The watch can display vehicle warnings like "doors open," "sunroof open," or "convertible roof open," like the interface shown here on the Galaxy Gear.

Smartwatches are intended to work inside the car as well, to warn drivers of upcoming accidents, road hazards, or severe weather. If there's no alert to display, the watch will just show the car's current speed.