What Does Your Car Know About You? More Than You Might Think. | NBC Nightly News

High-tech cars are able to collect gigabytes of personal information — things like your weight, where you're going, and, if you connect your phone, music preferences and contacts.» Subscribe to NBC News: http://nbcnews.to/SubscribeToNBC » Watch more NBC video: http://bit.ly/MoreNBCNews

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What Does Your Car Know About You? More Than You Might Think. | NBC Nightly News