The Prince’s nineteenth-place finish at the 1923 Indy was his best performance.
Other participation included that year’s Grand Prix of France held at Tours and the 1924 inaugural event at the Montlhéry Circuit south of Paris.
During the late 1950s, chassis no. 4004 was mated with the engine from its sibling no. 4006. This latter engine had powered a land speed record attempt at California’s Muroc Dry Lake in 1929.