Vincent Black Prince was termed the motorcycle you either love or hate. "The Motor Cycle" road tested a Black Prince and concluded that it handled as well as the Vincent Black Shadow with improved fuel consumption. Production of the Black Prince began in early 1955. Lucas components replaced the less reliable Miller electrical system, and better ignition – upgraded to coil and distributor – together with Amal Monobloc carburettors improved starting. The rear enclosure, which incorporated the oil tank, was hinged to allow access to the rear wheel and final drive chain. The centre stand was operated by a lever accessible from the
Black Shadow (wrestler) to ailing health, forcing him to retire after almost 40 years in the business. After his retirement Cruz withdrew from the spotlight, rarely talking about his career. In 2001 Black Shadow was inducted in the Wrestling Observer Newsletter Hall of Fame for his contributions to professional wrestling. Cruz also appeared in numerous Mexican wrestling films with Santo, mostly billed as "Black Shadow" in the credits. In two Blue Demon films, ("Blue Demon en Noche de muerte" and "Santo y Blue Demon contra los monstruos") the Black Shadow played an evil duplicate (or clone) of Blue Demon, dressed in the Blue