Top 10 Most Powerful Vehicles With Four Cylinders Published on February 7, 2022 in Top 10 by Guillaume Rivard Photo: Louis-Philippe Dubé 5. Porsche 718 Cayman S/718 Boxster SPorsche is synonymous with power. In S trim, the German brand’s entry-level sports cars use a turbocharged 2.5L flat-four engine to put out 350 hp and 309 lb-ft of torque.