GM's new trucks earn five stars in crash evaluations, beating out key rivals.
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GM has redesigned its full-size SUVs, and they are more fuel-efficient than ever.
General Motors is leaner and meaner, but is it greener?
Earlier this month, we posted how Americans have adjusted to the $4+ a gallon gasoline prices to the point they're buying so-called "gas guzzling" mid to full-sized SUVs at steady numbers.