2014 Porsche 911 GT3

From a distance, Porsche’s racetrack-ready 2014 911 GT3 looks a lot like last year’s model. But on closer inspection we see a re-designed rear fascia and a rear end that’s 2 inches wider to accommodate 20-inch wheels. There’s something else going on back there, too: active rear-wheel steering. Maybe this will keep the 475 horses from breaking loose.