In 1983, Fiat presented the Uno, a pretty and not overly complicated compact car. In 1984, the speedster, which was available as a three- and five-door model, was voted "Car of the Year". Just how right the Fiat engineers were is shown by the fact that almost nine million Uno cars were built. This historical technical report analyzes the design of the Fiat Uno, supplemented by many illustrations.