The all-new 2014 GMC Sierra has undergone specific design changes to boost both fuel efficiency and interior quietness, after spending a major portion of its development time in a wind tunnel.
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Turns out, hybrid cars save lives as well as gas: a boon for those who already own them, undoubtedly.
If you're looking for a sneak peek at the 2013 GMC Acadia, but the usual rumors and whispers automotive sites just aren't doing it, well, you've been looking in the wrong place.
GM has redesigned its full-size SUVs, and they are more fuel-efficient than ever.