It's been almost 35 years since the National Highway Traffic Safety Administration (NHTSA) enacted its roof strength standards, but come late 2012 the new requirements will be in affect and in addition to saving around 135 lives each year and preventing over 1,000 injuries, it's going to cost automakers around $1.4 billion annually.

The new standards up the current crush force from 1.5-times the vehicle's unloaded weight to 2.5-times, along with maintaining sufficient head-room for an average-...
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