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Top 5 car technologies--photos

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November 11, 2009 6:29 PM PST

By: Wayne Cunningham

Number 5

Back-up camera
After a century of using a glass mirror to try and not hit things when backing up, rearview cameras are finally becoming common on cars. Essential on SUVs and vans, but also useful on sedans, the image from a back-up camera shows you what you can't see in the mirror: your rear bumper. Rearview cameras help prevent expensive property damage. But more importantly, they can keep you from backing over a person.

Photo credit: Josh Miller/CNET