The Lancia D50 was a Formula One racing car designed by Vittorio Jano for Lancia in 1954. The car’s design made use of many innovative features, such as the use of the engine as a stressed chassis member, the off-center positioning of the engine to allow a lower overall height, and pannier fuel cells for better weight distribution and aerodynamics. Six D50s were built, two of them now displayed in Italian museums. In 1955, Ferrari purchased the assets of Lancia and continued to develop the car, renamed as the Lancia-Ferrari D50 and later simply the Ferrari D50. The five-time Formula One Champion, Argentine race driver Juan Manuel Fangio, won the 1956 World Championship of Drivers with this car modified by Ferrari. During their competition lifespan, D50s were entered into 14 World Championship Formula One Grand Prix, winning five.