The Griffith Series 600 GT was the final model produced by Griffith Motorcars. After the supply of TVR bodies was no longer available, Jack Griffith partnered with Frank and Paula Reisner of Carrozzeria Intermeccanica to produce a steel-bodied sports car. The sleek body was designed by former GM Designer Robert Cumberford, with John Crosthwaite detailing the chassis, and legendary racer Mark Donohue handling engine installation and assembly. The vehicle was initially designed for a Ford drive-train, but supply difficulties forced Griffith to find another engine to power his new sports car. The new Plymouth Commando 273 was the engine of choice. Remnants of the Ford engine mounts and other fabrication made to fit the larger engine can still be found in the car. The total production number of Griffith 600s varies depending on the source. As many as 10 cars may have been produced, but according to Paula Reisner of Intermeccanica, only six bodies were sent to Griffith Motorcars to become Griffith Series 600s. Soon after the initial six cars were received, Griffith Motorcars closed its doors leaving only a handful of Griffith 600s completed. This example is the only Griffith 600 that was painted Cap Ivory and is believed to be the original New York Show car as well as Mark Donohue's personal driver.