[2] The UK national Formula Ford category disbanded these cars when it adopted the 1800cc Zetec engine in 1993.
[3] In addition to Formula 1600, Castle Combe also has Hot Hatch, GT, and Saloon Car championships.
The Historic Sports Car Club began running the Classic Formula Ford championship in 2020.
Due to the number of competitors, races are held for cars constructed before and after 1990, with separate champions being crowned.
The series is open to all Formula Ford cars, with points scored based on finishing position.
These races culminate in November's Walter Hayes Trophy at Silverstone which features up to 200 drivers and has included some notable names, such as Neil Cunningham, Danny Watts, Steven Kane, and Joey Foster.
Despite the homogeneity of mechanicals, the number of car constructors is vast, including Van Diemen, Swift, Mygale, Reynard, Vector, Crossle, Royale, Hawke, Mallock, Merlyn, Palliser, Macon, Lotus, Elden, Lola, Brabham, Titan, Jamun and Nike.