Piaggio Avanti P180

"The P180 Avanti II is Piaggio Aero’s flagship product. It is the world’s fastest turboprop business aircraft. It offers customers the speed of a light jet aircraft, the comfort of a large, quiet, midsize cabin, and fuel efficiencies that are nearly 40% higher than most business jets and 25% higher than the most efficient twin turboprops. The P180 Avanti II is the culmination of an effort by Piaggio Aero engineers to design, without compromise, an aircraft to meet the objectives of jet-like speed, a wide-body, stand-up cabin, and turboprop efficiency. After an intensive aerodynamic analysis and thousands of hours of wind tunnel testing, Piaggio engineers concluded that these goals could not be achieved utilizing conventional aircraft configurations. "