Gran Turismo 5 Prologue (グランツーリスモ5 プロローグ, guran tsūrisumo 5 purorōgu) is the latest installment in the Gran Turismo series and a PlayStation 3 exclusive title which was announced at the E3 2007. This short version title is a precursor to Polyphony Digital's planned Gran Turismo 5 and replaces 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]. Since March 28 2008, the game is now referred as Gran Turismo 5 Prologue Spec II which is the software's version 2.0 title[8]. The game is a budget sale which was first released in Japan on December 13, 2007 (Blu-ray Disc and PlayStation Store) to celebrate the 10th anniversary of the series. It was followed by a Chinese translated version issued in South East Asia on February 1, 2008 through the PlayStation Store, then on Blu-ray Disc on February 15. An upgraded version[9] dubbed "spec II", also available as a patch for the original version, was released on the PlayStation Store on March 27, 2008 in Australia, then in Europe on March 28[10]. However, in Portugal the game was officially launched in stores as early as March 26, 2008(and unofficially on March 21).[11] The "spec II" version was released in North America on April 15, 2008 (Blu-ray Disc) and was released on April 17 (Playstation Store). The Blu-ray Disc version will offer added value with an exclusive GT-TV video feature called "Beyond the Apex ...