回复:结论:美国车减重不影响安全。日本车减重是偷工减料,影响安全。

Check this.

http://www.youtube.com/watch?v=yBKFKhcfmbQ

Current F150 frame strength is 4x of tundra's.
Even if new F150 has only 1/4 of the old F150's frame strength, it still breaks even with tundra.

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