Update 2
Update
Thanks goes to Putty
Somebody on GFPlanet posted that in reply to me.
https://www.gtplanet.net/forum/threads/gt6-sales-discussion.292590/page-60#post-10948891
So they numbers are estimated by Virag's representatives from before July 2014.
I guess that is case closed?
Update
They received the numbers from Sony in November 2014: https://www.unitedstatescourts.org/federal/cand/286737/ (#23).
#23 is found here where they talk about these numbers: https://www.unitedstatescourts.org/federal/cand/286737/1-0.html
Thanks goes to Putty
As part of the ongoing litigation by Italian flooring company VIRAG, SCEA shared GT6 sales statistics with the Northern District Court of California. Magistrate Judge Laurel Beeler’s ruling in the court documents show this number to be 2.37 million copies for GT6, bringing the Gran Turismo franchise to 72.6 million copies sold across its 17-year history:
gran-turismo-6-boxartIn December 2010, the defendants released Gran Turismo 5, which included a simulated version of the Monza Track. In the course of designing Gran Turismo 5, the defendants willfully and intentionally chose to include the VIRAG® mark on a simulation of the bridge from the Monza Track.
Sony America distributed the Gran Turismo 5 game globally, including throughout the United States and North America, and to date over 10.89 million copies have been sold. The defendants’ unauthorized use and display of the VIRAG® mark continued in Gran Turismo 6, which was released in December 2013. To date, over 2.37 million copies of Gran Turismo 6 have been sold
https://www.gtplanet.net/gran-turismo-6-sales-revealed-at-2-37-million-copies/It’s also interesting to note that GT5 sold an additional 230,000 copies since March of 2013 (when Polyphony last updated their sales page), a somewhat remarkable performance considering GT6’s release on the same console and the termination of GT5’s online services in May of 2014.