This is what I've found from emails off-list about the owner of Western States Imports. Lou Deeter, Orlando FL
The owner of Western States Imports was Mitch Weiner. An Austrian couple by the name of Seidler escaped the religious prosecution of the Nazi's and came to the USA. They founded a company called United Import and initially imported Steyr, Capo, Clubman, & Peugeot. Mr Rudy Seidler had worked at Puch/Steyr in Austria. Mitch Weiner married the Seidler's daughter. He broke away from United and founded Western Imports. I haven't found the details about the transition from the Centurion to Diamondback name, but it may have occurred when Mitch Weiner died. Anyone with additional information, chime in.