The Porsche 787 was a Formula Two racing car built in 1960, based on the 1500 RS-K race sports car.
Built to the 1960 Formula Two formula, the Type 787 was driven by such notables as Wolfgang von Trips and Dan Gurney to victory and obtaining the unofficial "Coupe des Constructeurs" — Formula Two's World Constructors Championship. The car had a flat-4 engine developing 190 hp at 8,000 rpm.
In 1961, the 787 was used in Formula One for a few races while the 718 took part in most races.
References
Porsche 787 Wikipedia(Text) CC BY-SA