Toyota Tundra Scores Highest in IIHS Rear Crash Tests
By: Mike LevinePosted: 07-03-07 09:40 PT
© 2007

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The Insurance Institute for Highway Safety (IIHS) has released the results of its rear impact crash testing, and the new Toyota Tundra has come out on top amongst all pickups - scoring the only 'Good' rating from the IIHS.

The IIHS testing simulates a rear-end collision by ramming a stationary vehicle from behind with a steel sled, of equal weight to the test vehicle, at 20-mph.

Specially instrumented dummies in the cabin of the struck vehicle are measured to determine how well the automobile's seats managed the head and neck motion of the dummies relative to their torso and body movement. A significant differential between the two is the cause of whiplash injuries.

According to the IIHS, "The key to reducing whiplash injury risk is to keep the head and torso moving together. To accomplish this, the geometry of a head restraint has to be adequate — high enough to be near the back of the head. Then the seat structure and stiffness characteristics must be designed to work in concert with the head restraint to support an occupant’s neck and head, accelerating them with the torso as the vehicle is pushed forward."

The Tundra also received an IIHS 'Good' rating earlier this year in frontal offset crash testing, though in federal government crash testing it only achieved four out of five stars for driver and passenger safety.

Scores for all the trucks tested by the IIHS are below:

The IIHS did not test the Ford Ranger or Mazda B-Series compact pickups because the geometry of their head restraints is marginal or poor. This means they can’t be positioned to protect many taller people.

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