A private railroad car, private railway coach, private car or private varnish is a railroad passenger car which was either originally built or later converted for service as a business car for private individuals. A private car could be added to the make-up of a train or pulled by a private locomotive, providing splendid upholstered privacy for its passengers. They were used by railroad officials and dignitaries as business cars, and wealthy individuals for travel and entertainment, especially in the United States.