Toyota Tundra Scores Highest IIHS Rating in Crash Test
By: Mike LevinePosted: 05-01-07 08:40 PT
© 2007 PickupTruck.com

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Autoblog and Kicking Tires are on their toes this morning.

Toyota Tundra engineers and product managers are likely breathing a big sigh of relief after receiving the highest crash test rating of 'Good' from the Insurance Institute for Highway Safety (IIHS). In March there was much surprise that the Toyota Tundra only scored a four star safety rating in government crash tests.

IIHS tested two 2007 Toyota Tundra Double Cabs, one a 4x2 and the other a 4x4, in frontal offset crash tests.

The Institute's test primarily assesses how well a vehicle's front-end crush zone absorbs energy during a crash and, in turn, how well the occupant compartment, or safety cage, holds together. If the compartment remains largely intact, then the restraint systems can control the motion of the crash test dummy and help keep injury measures low.

An overall score was assigned based on crash test results in three areas: structural performance, injury measures, and restraints/dummy kinematics. Scores are qualified as 'G' for good, the highest rating, 'A' for average, or 'P' for poor.

Structure / Safety Cage
Injury Measures
Restraints / Dummy Kinematics
Head/neck
Chest
Leg, Left
Leg, Right

For structural performance, the amount and pattern of intrusion into the occupant compartment during the offset test is measured. This assessment indicates how well the front-end crush zone managed the crash energy and how well the safety cage limited intrusion into the driver space. Intrusion is measured at 9 places in the driver seating area by comparing the precrash and postcrash positions of these 9 points.

Injury measures for the head and neck, chest, and left and right legs and feet are used to determine the likelihood that a driver would have sustained injury to various body regions.

Restraints and dummy kinematics are measured to see how the vehicle's safety belts, airbags, steering columns, head restraints, and other aspects of restraint systems interact to control dummy movement.

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