2011 Ford F-150 2WD SuperCrew 145Enlarge Photo
2011 Toyota Tundra Angular Front Exterior ViewEnlarge Photo
The Insurance Institute for Highway Safety (IIHS) has released its first ratings for large pickups in its rollover-related roof-strength test, and both the 2011 Ford F-150 and 2011 Toyota Tundra have earned top 'good' ratings.
The roof-strength test measures the force that can be sustained by the roof—over a specific area of the roof around the driver's head—before it deforms give inches, then compares that force to the overall weight of the vehicle, as a ratio. Vehicles that can sustain more than four times their weight earn the top 'good' rating.
In the tests, the Tundra withstood 4.5 times its weight, while the F-150 could withstand 4.7 times its weight.
Three other full-size trucks, the 2011 Nissan Titan, 2011 Chevrolet Silverado, and 2011 Dodge Ram, didn't fare nearly as well; while the Titan earned an 'acceptable' rating, the Silverado (and its sibling, the 2011 GMC Sierra) and the 2011 Ram were given a 'marginal' rating—indicating a higher chance of severe injury or fatality if
For the 2011 Ford F-150, it's noted that the results apply to models made after February 2011, as Ford had made some structural improvements.
Both the 2011 F-150 and Tundra also earn the IIHS Top Safety Pick accolade with thes test results, as they already have top ratings in the safety Institute's frontal, side, and rear test categories.