microphones, kidneys and Audi's electric A2 concept. This newest flight of fancy uses a laser diode as the rear fog lamp, which projects a red triangle onto the road to let other drivers know you're there. The German car-maker has tricked out the rest of the EV's lighting system as well by implementing matrix beam technology using LEDs and microreflectors -- giving it high resolution, non-glaring beams and intelligent tail lights that change in intensity based on weather conditions. Claiming other state-of-the-art features like gesture controls instead of keys, and brake lights that glow brighter the harder you press, it sounds like this would be a pretty sweet ride -- if it ever makes it to market. No word on the other, insignificant details (ya know, like what actually powers the thing) but there's plenty more about the car's lighting system in the PR after the break.