Aftermarket parts manufacturer Trust, and its GReddy sub-brand, is running a special livery competition in Gran Turismo 7 which will award one chosen winner a trip to the 2025 Tokyo Auto Salon...
It's too bad that I can't design a livery worth a damn, but I love hearing about the winners of these contests and downloading them. Plus, the newly-added HiAce is a fantastic vehicle to use as a "canvas," not only because of the general shape of it, but because of how it definitely fits the JDM theme as well.
GReddy has partnerships with all four, and the logos appear on its official cars like this Formula Gymkhana machine:
If I was guessing, I'd say that they just made that as an example based on their own real-world liveries - but you should probably avoid doing so yourself.