Red light, green light

Researchers are looking to figure out how to get BMW cars to communicate with stoplights. A team at Mountain View is trying to figure out which information from the stoplights to display to a driver to help improve safety and save fuel. Certain stoplight timing data -- like when a light will turn colors -- could help drivers make decisions that would improve the fuel economy of cars. Of course, Demptster says, it's important to fine-tune the formula so the display doesn't encourage drivers to gun it to beat a red.

  @FortuneMagazine - Last updated April 03 2013 09:22 AM ET
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Look inside BMW's plug-in concept car  

The BMW Active Tourer hybrid is a concept vehicle that features plug-in capability, an 8-speed transmission and a twin-turbo 3-cylinder engine.

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