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Subaru Impreza WRX
For decades, Subaru has been one of the most powerful four-cylinder cars on the market. Under the hood is a flat four engine with 2.5-liters of displacement, as well as a turbocharger. This combo delivers 305 HP, which goes to all four wheels via a six-speed manual. Of course, the turbo needs a lot of air to cool down. And, that is why the WRX has one of the craziest and biggest hood scoops in the business.