Built-in navigation systems increase the depreciation of a car or truck, a startling fact that has some car companies rethinking their approach to the $2,000 factory-installed systems.
"Navigation could be like cellphones built into cars in the '70s and '80s; those big, blocky phones that nobody has now. Everybody has a small, personal cellphone," says John Krafcik, vice president for product development at Hyundai Motor America.
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