well I just read something about Gran Turismo 7 is going to be a possible launch title for the PlayStation 5, but I don't keep up with modern game so I am not too sure., does anyone still care about the Gran Turismo series anymore, I never played a series like Gran Turismo with having 100's of cars to choose from and upgrade them.
In case you do not know. in every Gran Turismo game I've played so far. it's vary easy to understand how to upgrade your cars, it's nothing like some of the NASCAR sim games I've played, where they expect you to know about how to fine tune your car with wedges, and spoilers, and tire pressure. All you need to know is what kind of tire you need for the race, and how to use the different shocks and how to add Horse Power to all your cars, it tells you how to do this. Air filters and mufflers and various engine upgrades all tell you what they are going to do to your car pretty much before you purchase them
But however there is a fine tune mode called (edit) Professional tuning mode where the games warn you before you tweak the car with similar to NASCAR fine tuning for experts only.
I am not trying to be a jerk but at least in Gran Turismo 1,2 and 3 and 4 all cars are in the game, meaning you don't need to pay extra like you might on later games GT 4 is said to have over 700 buy able cars but there might be a limit on how many you can have all at once on one saved file, and Gran Turismo 2, the one in the link above has 650 buyable or unlockable cars