Doug's Take The 991 Porsche 911 Turbo is a thrilling sports car with supercar-baiting performance thanks to a powerful twin-turbo flat-6 engine, a clever all-wheel drive system, and a quick-shifting dual-clutch transmission. This particular 911 Turbo boasts some nice factory equipment, including a set of 20-inch Turbo S center-lock wheels, a sunroof, and a Bose sound system. This 911 Turbo also touts reasonably low mileage – and it's offered with a clean, accident-free Carfax report, for added buyer confidence.