This was available for a limited time from December 2006 to September 2007 so not a whole lot claimed it before it was removed, I assume. I personally bought a PS3 (Slim 250GB) in 2010 so missed my chance and wasn't aware of it, anyway.
GTHD (which is pretty much a demo) is available for download, but only playable on hacked PS3s. The physical version goes for a lot of cake and it's not worth it (unless you're a collector) as there is GT5 Prologue, GT5, and GT6.
That being said, it would have been nice to have claimed it, oh well.
Sources:
https://www.destructoid.com/gran-turismo-hd-concept-to-be-free-for-download-in-u-s/
https://lostmediawiki.com/Gran_Turi...listed_PlayStation_3_driving_simulator;_2006)
GTHD (which is pretty much a demo) is available for download, but only playable on hacked PS3s. The physical version goes for a lot of cake and it's not worth it (unless you're a collector) as there is GT5 Prologue, GT5, and GT6.
That being said, it would have been nice to have claimed it, oh well.
Sources:
https://www.destructoid.com/gran-turismo-hd-concept-to-be-free-for-download-in-u-s/
https://lostmediawiki.com/Gran_Turi...listed_PlayStation_3_driving_simulator;_2006)