The Porsche 911 Turbo and Turbo S are the quickest and most extreme versions of the 911 range that you can buy. The rear-engined 911 features a 3.8-liter flat-six engine with a pair of turbos that help produce 572 hp and 553 lb-ft of torque in the Turbo and a whopping 640 hp and 590 lb-ft in the Turbo S. All-wheel-drive is standard, as is an eight-speed dual-clutch PDK automatic, but alas, the manual gearbox that enthusiasts crave is still not available on this model. What you do get is a standard rear-axle steering system, dynamic engine mounts, active aero aids, and a system that can help you negotiate the wettest roads with confidence. Also included are features like heated sports seats, a Bose sound system with 12 speakers, a 10.9-inch touchscreen infotainment system display, and LED headlights. A ceramic composite braking system is standard on the Turbo S.