Gran Turismo 5 Prologue

Gran Turismo 5 Prologue (グランツーリスモ5 プロローグ, Guran Tsūrisumo 5 Purorōgu) is a racing video game developed by Polyphony Digital and published by Sony Computer Entertainment for the PlayStation 3. Gran Turismo 5 Prologue is the sample version of Gran Turismo 5, following Gran Turismo HD Concept. The "Prologue" suffix is a self-reference to Gran Turismo 4 Prologue, which was released one year before the full version of Gran Turismo 4.[1]

The game has sold 5.09 million copies worldwide, making it the second highest selling PlayStation 3 exclusive title after its successor, Gran Turismo 5.[5]

An upgraded version,[6] dubbed Spec II, is also available as a patch for the original version. It was released on the PlayStation Store on March 27 2008, in Australia, and on March 28 2008, in Europe.[7] The latest update, entitled Spec III, added new cars and further improvements to the game and was released on October 2008. A separate disc was also released in Japan that included all updates, including Spec III. The Platinum release of the game, originally unveiled in Europe, also comes with the Spec III update.