The 2003 Porsche 911 Turbo is an exciting mixture of power and control. Power comes from its 3.6-liter, horizontally opposed, six-cylinder "boxer" engine, which uses the boost of twin turbochargers to provide 415 horsepower (SAE) and 415 pound-feet of torque. Control comes from all-wheel drive, the Porsche Stability Management system (PSM) and 18-inch wheels with Z-rated tires that make the Porsche Turbo the best-handling version in the model's history.