The 2011 Ford F-150 and Toyota Tundra are now the only large pickups to earn the top rating of good in roof strength tests from the Insurance Institute of Highway Safety hat measures occupant protection in rollover crashes. 
The F-150 and Tundra earned the Institute’s 2011 Top Safety Pick award after receiving top safety ratings in front, side and rear tests.
According to the IIHS, the Tundra was able to withstand a force 4.5 times its weight, while the F-150’s roof was able to withstand a force 4.7 times its weight. A vehicle must be able to withstand a minimum four times its weight to earn a good rating. The Nissan Titan earned an acceptable rating in rollover protection, while the Chevy Silverado, GMC Sierra and Dodge Ram were rated as marginal in the test.
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