Originally posted by Raymo5
I really don't think it will work because it is server side fix that they did sort of like the hotfix that were done in black ops when everybody was doing the prestige glitch.
Just an idea since it seems as though most other things are tied to the save or patches. It's only a theory and we won't know until it's tried =) the GT5 team hasn't been too good at security of the game since the beginning so wouldn't surprise me if it happened to work.