Gran Turismo 7 PS4 will be released on two discs, as revealed via a store page on PlayStation Direct. This is not the same situation for PS5 owners, as the next-gen version will be shipped on only one disc.
Detailed over on the PlayStation Direct website, you can see that the game will be on two discs if you get the PS4 version of the game. You can read the product description details posted down below.
“1-2 players. 2-20 network players. PlayStation®Plus subscription required*. 110GB minimum. DualShock®4 vibration function supported. 2 Discs. Online Play Optional. PS4 Pro Enhanced.”
Gran Turismo 7 will take up a lot more space compared to its predecessor, Gran Turismo Sport, which ame out on only one disc. The total file size for the game on PS4 will be 110GB. For those of you playing the PS5 version of GT7, the file size is slightly smaller at 89.445GB.
As the file size only refers to the game on launch date, expect it to get bigger when more content is released. You will need to make sure you have hard drive space first before you decide to install the game. Gran Turismo 7 releases on March 4, 2022 for the PS5 and PS4 consoles.