The Ferguson monoplane was created by the inventor of what first Formula One car to have four-wheel drive?
Ferguson monoplane:  The monoplane was designed by Harry Ferguson and built by his brother's company J.B. Ferguson & Company in Belfast. Harry Ferguson: Henry George "Harry" Ferguson (4 November 188425 October 1960) was an Irish-born British engineer and inventor who is noted for his role in the development of the modern agricultural tractor, for being the first person in Ireland to build and fly his own aeroplane, and for developing the first four-wheel drive Formula One car, the Ferguson P99.
Ferguson P99