Enthusiasts have been waiting for a knock-out car like the Porsche Cayman GT4 to lift the company out of the doldrums, writes Dan Neil Enthusiasts have been waiting for this car like dogs paying lewd attention to pillows, writes Rumble Seat columnist Dan Neil Porsche's Cayman GT4-which boasts 385 hp at 7,400 rpm and can hit 60 mph in 4.2 seconds-is tight and efficient. Dan Neil/The Wall Street Journal The GT4 comes only with a traditional six-speed manual transmission with a pedal-lever clutch.