Complex sentence: Frank Sinatra, Dean Martin, and Sammy Davis Jr. all owned Stutz cars, as did Evel Knievel and numerous Sheiks and Shahs, entertainers, royalty, and barons of business from around the world.
Split into simpler sentences: Frank Sinatra, Dean Martin, and Sammy Davis Jr. all owned Stutz cars. As did, Evel Knievel and numerous Sheiks and Shahs, entertainers, royalty, and barons of business from around the world.