The company was considered the preeminent luxury car before World War II, and contributed aircraft engines for the war effort to Allied forces. Owning a Packard was a prestigious accolade, being the favorite with European Royalty, celebrities and Corporate America. President Frankin Roosevelt was known to give limousines as gifts on several occasions, and surviving examples can be found in museums, car shows and automobile collections worldwide. Occasionally they appear in auctions and typically command premium prices. Their value was the result of engineering pursuit with little regard to expense, using the best of everything in their products. As far as Packard was concerned, the greatest luxury was mechanical quality, refinement and reliability above all else.