The Porsche 911 Turbo S Cabriolet is a high-performance, luxury convertible sports car, produced by Porsche since the 1974 model year. It is powered by a twin-turbocharged 3.8-liter flat-six engine that produces 580 horsepower and 516 pound-feet of torque. The 911 Turbo S Cabriolet can reach 0-60 mph in just 2.9 seconds and a top speed of 198 mph. It also features a retractable soft top, adjustable suspension, and a seven-speed dual-clutch transmission.