GM’s 3.0-liter Duramax diesel is a natural fit for the easygoing Suburban.

We like to think of ourselves as agents of our own destinies, but behavioral science says that we simple humans can be steered toward certain decisions simply by disguising the idea that there’s a decision to be made at all. To arrive at a preferable outcome, sometimes all you need is a gentle prod in the right direction, an unnoticed prompt that often manifests in the form of a default choice.
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