There are cars in GT7 that have been in GTs ince GT5 but I haven't driven in any GT game despite owning all of them, that's because they tend to cost far too much in relation to the in game economy and take considerably more time to grind for than I have a. the patience and b. the time to do.
Therefore this glitch is giving me a rare opportunity in the Gran Turismo world to actually buy my very first ever 20m Cr car. I have never purchased one from GT5 through GT7 before, but currently I can afford 2 when they next come up for sale.
It's also let me complete my collection of invitation cars just to get them out of the way without waiting for invitations to come around through the daily ticketswhich again would probably never happen in the time I play the game.
But I'll probably play more thanks to this glitch, once it's patched and I have the cars I want and I don't need to keep repeating the same couple of races for the credits to afforf them, I can spend far more time doing custom races without the low payouts bothering me.