How about Cadillac automobiles? They were first identified by "Model" (A, B, C, D, "30", etc.), then by "Type" (51, 53, 55, V-63), then by a "Series" number (314, 353, 370A), then by a series name ("Calais", "DeVille", "Fleetwood"), not to mention individual models like the "Seville", "Cimarron", "Allante". In 1930-31, on the V-16 chassis alone, there were about 70 different "Job/Style" numbers by Fleetwood and 11 by Fisher. You cannot PROPERLY identify a Cadillac of that period without indicating the "Series" and the "Job/Style" number. For example, a Cadillac "452D/5775FL" clearly identifies a 1934 formal limousine style on the sixteen-cylinder chassis. Of course you could leave it at "1934 Cadillac limousine", but that description would be far from complete. Which brings us to commercial vehicles and conversions on Cadillac chassis. "Cadillac ambulance", "Cadillac Flower car", "Cadillac funeral coach", "Cadillac Mirage Pick-up", "Cadillac Station Wagon" do not do justice to the reputable coach builders who fashioned the body. For example, you wouldn't identify a custom Delage, Delahaye or Hispano Suiza without adding the coach-builder (e.g. "Figoni & Falaschi", "Letourner & Marchand", "Fernandez & Darrin", etc. Sorry to complicate your life !