Jack Griffith came up with the idea for the car in 1964, and secured rights to market the cars in the US. Griffith ran a car repair workshop in the US for patrons such as Gerry Sagerman and Mark Donohue who had both driven a TVR Grantura at Sebring International Raceway in 1962. The concept for the Griffith Series 200 originated during a dinner with Carroll Shelby, where Griffith declared he could build a car that could outperform an AC Cobra.