Back in October, General Motors announced the demonstration of its Vehicle-to-Vehicle (V2V) technology. The safety devices allow similarly equipped vehicles to communicate with each other and warn their drivers of any pending contact.

The following article provides details on a more recent test held in San Francisco using three Cadillac CTS sedans. The warnings, for example, not only include visual cues such as lights, but also what is called "haptic feedback", which causes the left side of the driver's seat to vibrate heavily if the system senses someone in the vehicle's blindspot. Other technologies involved, such as the Dedicated Short Range Communication (DSRC), are discussed as well.

reports that each prototype sedan's trunk is has four computers, a GPS nav system and wireless communication module. By the time GM rolls out all this technology in five to ten years the hardware should be reduced to the size of a single chip, leaving plenty of room of your golf bag or dead bodies or whatever Cadillac trunks are used for these days.

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