Image: Garmin Knowledge is Power Most of us probably don’t realize that over the past few years our cars have turned into computers on wheels. There are tons of sensors everywhere, but most of that information isn’t available to the driver. That’s a shame, because if it was parsed through a user-intuitive interface, it could provide very useful feedback that could help people

drive more efficiently (the Prius LCD effect). Well, this is exactly what Garmin is trying to do with a new add-on cable that can plug into your car’s diagnostics communication port and feed that real-time data to your GPS dev… Read the full story on TreeHugger

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Garmin Eco-Route Add-on Turns Your GPS Into a Green-Driving Teacher