This is a rather extensive comparison test between the new 2014 Porsche 911 GT3 and the Ferrari 458 Speciale. The 2014 Porsche 911 GT3 is powered by a 3.8-liter boxer engine that delivers 475 hp and 438 Nm of torque. The Ferrari 458 Speciale has a V8 engine that's good for 605 hp at and 540 Nm of torque.