How Indycars became a spec formula
In the halcyon days of the CART World Series, constructors such as Chaparral, Galles, Lola, March, Penske, Reynard and Swift did battle from 1979 until the early 2000s. Cosworth, Chevrolet, Mercedes, Honda and Toyota were among the title-winning engine manufacturers.
Several years after the 1996 split that divided Indycars into