To be clear:

Remember to always respect the game's developers and publishers by purchasing the game through official channels. This not only ensures that you get a stable and safe gaming experience but also supports the development of future games.

Gran Turismo 6 was never officially released for PC. Any "PC Download" or "Torrent" claiming to be a native PC installer is almost certainly a scam or malware The only legitimate way to play the game on a PC is through using the PS3 emulator 🚨 Safety Warning: Avoid "PC Download" Torrents

Gran Turismo games are now very stable on RPCS3, the PS3 emulator

On various torrent sites, you may see files labeled "Gran Turismo 6 PC - Pre-installed" or "Torrent Top." These are often traps.

: Official online servers for Gran Turismo 6 were shut down in 2018, so online multiplayer features are no longer available. Safety Warning

Note: Using pirated files is illegal; the official method is to rip the files from your own physical PS3 disc. Configure Settings