Slimer, thank you for your comments. I guess that leads to my next question. Why? Why have all these series, drivers, and such included in a game that was never really about actual competition from existing series?
Perhaps my best response to my own question is that people think there isn't much fun in racing a bunch of cars in a no-name racing series. To some, I guess it doesn't seem fun racing against AI with no personality or charisma. I the ToCA series of games has done a good job with having characters with personality, but not exactly real people. For example, take "ToCA Race Driver 2." You have an assortment of characters outside of racing, including your manager, your crew chief, that crazy girl with the TV camera, and all the Team Shark hopefuls (one of which is a friend).
Look at this issue like this as well. If there were actual racing series with actual drivers and actual rules, how would you like being this no-name racer, and just spin out one of the best names in the series (for example, doing a Super GT race and spinning out Satoshi Motoyama, doing the D1GP and slamming a member of Signal Auto into the wall, or even racing Australian V8 Supercars or causing an avoidable collision against Mark Skaife or Craig Lowndes)? That would be another reason why I wouldn't see this idea work. Can you really trust that we're not going to want to drive like idiots against licensed drivers? I don't enjoy damaging cars, and especially don't like damaging cars to licensed drivers and teams. Maybe it's just me, but when I race a certain series in a game with licensed teams, I actually want to pretend I actually drive for that team in real life. So any mistake, and I'll feel pretty bad about it. I'd basically do the safe thing and fake a lot of things. It's how most racing games get away with licensing issues, and GT would be no different.
Now I leave my question to you. Why have all these series, drivers, and such included in a game that was never really about actual competition from existing series?