In the case of the 911 Carrera 4S Cabriolet that begins with a larger, more potent six-cylinder engine. The Carrera 4S is powered by a 3.8-liter flat six that produces 355 horsepower and 295 lb.-ft. of torque. The roughly ten percent increase in power translates to improved acceleration and higher top track speed. The 911 Carrera 4S Cabriolet with the six-speed manual gearbox races from a stop to 60 mph in only 4.7 seconds, topping out at the track at 185 mph. When carrying the optional Tiptronic S transmission, the zero to 60 mph sprint takes a mere 4.5 seconds.
