 The concept of a two-door vehicle based on a passenger car chassis with a tray at the rear began in the United States in the 1920s with the roadster utility (also called "roadster pickup" or "light delivery") models.These vehicles were soft-top convertibles, compared with the fixed steel roof used by most utes.Ford Australia is claimed to be the first company to produce an Australian "ute", which was released in 1934.