The United States Grand Prix, Watson used the car in practice, but due to a technical failure was forced to switch to the old PC1, which was in the paddock as a demonstrator, for the race.

He finished in ninth position, but his performance earned him a full-time Penske F1 drive for 1976.

[3] The first race of the 1976 season was the Brazilian Grand Prix, Watson retired when a fuel system failure turned into a fire.

[5] Watson was eleven laps down and not classified at the United States Grand Prix West[6] and retired at Spain with engine failure,[7] Watson finished seventh at the Belgian Grand Prix[8] and tenth at Monaco.

F&S Properties bought a PC3 from Penske and entered Dutchman Boy Hayje for his home race, the 1976 Dutch Grand Prix but he retired with a broken halfshaft.