While Sony would not be drawn a new Japanese launch date, gamers in the West remain no closer to a definitive date than they were six months ago.
Late last year, Sony Computer Entertainment America?s Chris Hinojosa-Miranda said the company is hoping for a Summer 2010 (US) launch - around June or July at the earliest.
With Japan's anticipated March release now delayed, a June/July Western release would seem unlikely.
Only yesterday, Nissan and Sony announced that the second instalment of its popular GT Academy Time Trial had reached one million downloads.
?Hitting one million downloads of the GT Academy Time Trial from the 17 participating countries alone is a very important milestone,? Kazunori Yamauchi, Gran Turismo creator and Polyphony Digital President said.
Speaking with Reuters, a spokesperson for Sony said this week that despite the delay, the company has not altered its software sales targets for the Japanese financial year ending March 31.
In total, more than 53 million copies of the Gran Turismo games have been sold since the title's launch on the original PlayStation in 1997.