With the number of drivers 65 and older on the road in the US nearly doubling in the next 20 years, General Motors is working on ways to assist these drivers as their eyesight wanes. Employing infrared sensors and a camera, the new technology takes what's happening on the road and enhances it, assisting drivers with vision problems to see a little more clearly what is on the horizon. "... during a foggy drive, a laser projects a blue line onto the windshield that follows the edge of the road. Or if infrared sensors detect a person or animal in the driver's path during a night drive, its outline is projected on the windshield to highlight its location." according to this CNN article. An interesting concept so long as what is projected on the windshield does not itself become a distraction!