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(KSL News) -- There's more evidence that the vehicles we drive have more passenger protection.
In it's latest series of tests, the Insurance Institute for Highway Safety looked at the effectiveness of 2003 model head rests in preventing whip-lash in rear end crashes.
Of the 227 foreign and domestic cars, trucks and SUV's tested, nearly 45-percent were equipped with restraints rated "good."
That compares to just seven years ago, when 82-percent were rated "poor."