Porsche claims the 911 Carrera 4 GTS with the Sport Chrono package hits 60 miles an hour in 2.9 seconds. Mat Watson of carwow, meanwhile, clocked 2.82 seconds ...

As a 911 Carrera T, it has a twin-turbocharged 3.0-liter flat-six with 379 hp and 331 lb-ft of torque. This engine is coupled ...