"Gran Turismo 4" was well-received critically and a commercial success, becoming one of the highest-selling games of 2005, and the third best-selling game on the PlayStation 2. The Chinese, Japanese, and South Korean releases of the game were bundled with a 212-page driving guide and lessons on the physics of racing. A limited edition, "Gran Turismo 4 Online test version", was released in Japan in summer 2006. A PSP enhanced port entitled "Gran Turismo Mobile" was originally planned for development, but was later renamed to "Gran Turismo", which was released October 1, 2009. The follow-up game, "Gran Turismo 5", was released in 2010 for the PlayStation 3.