Although it had some characteristics of the PC1, the Penske PC3 also somewhat resembled the March 751, not only in shape but also in the design of the suspension. The Cosworth DFV engine with the Hewland gearbox did not vary. The PC3 essentially served as an intermediate model: it made its appearance in the last GP of the 1975 F1 season, but did not take the start. During 1976 John Watson obtained a fifth place at the South African GP. Two PC3s were built. Bob Hayje also drove the car.
In the history of static modeling, Spark has truly revolutionized the market. The brand was created by Hugues Ripert, whose father André had been one of the main contenders of the artisanal modeling scene in the 70s and 80s. After working for Vitesse, Quartzo and Ixo, Ripert jr did not choose the diecast technique but opted for resin, with production in China but development and conception strictly in the European tradition. In practice the idea was to offer special models built in small series (what were later called "resincast"). The first Sparks were released in 2000, with a quality-price ratio unapproachable for most industrial and artisanal producers. Today Spark continues to churn out dozens of new products a year, having also expanded its production to other scales, such as 1:18 but also 1:64. There are numerous numbered and limited series for the various national distributors and for private customers such as teams, sponsors, drivers and so on.