Once upon a time, it was a big deal when any car cracked the 300-horsepower mark. Now it seems like almost every performance car can hit that range – even ones with just four cylinders under the hood. The miracles of turbocharging, direct fuel injection, and variable valve timing allow engineers to extract massive amounts of power from smaller engines than ever before. And as the Honda Civic Type R’s record-setting Nürburgring lap showed us, you can get plenty of performance from a modern four-banger. Not convinced? Here are the ten most powerful four-cylinder cars available in the U.S. market. 

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