This Is Why a Toyota V-6 and Porsche Flat-Six Sound So Different

What separates a Porsche flat-six from a Toyota Avalon V-6—aside from the bank angle, the power output, the engine location, and your interest in owning one? At full throttle, the Porsche belts out an aggressive mechanical rasp while the Avalon mutters a nonthreatening burr. How can two six-cylinder engines sound so different? READ MORE ››

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