This <a href="hhttps://www.popsci.com/category/best-whats-new/"><strong>four-cylinder engine</strong></a> manages the power of a conventional five or six, while cutting 100 pounds of weight.
This four-cylinder engine manages the power of a conventional five or six, while cutting 100 pounds of weight. Courtesy Volvo
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Conventional wisdom tells us that an increase in power requires an increase in engine size. Volvo’s four-cylinder Drive-E engine has inverted that logic.

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