The Piaggio P.180 Avanti is an executive/VIP light transport aircraft, designed by Piaggio Aero and built in Italy. It features twin, wing-mounted turboprop engines, in a pusher configuration.[2] The Avanti seats up to nine people in a pressurized cabin and may be flown by one or two pilots. The design is of three-surface configuration, having both a small forward wing and a conventional tailplane, as well as its main wing, with the main wing spars passing behind the passenger cabin area. The FAI lists it as the fastest propeller-driven aircraft with speed of 927.4 km/h (576.3 mph; 500.8 kn).[3]
https://en.wikipedia.org/wiki/Piaggio_P.180_Avanti