It is the Columbo of game modes... "Just one more thing."
Did it convince you to complete it? Pass those licence things. Get all the flashy star doodahs... It did me.
If it were realistic... you would need to repair cars and maintain them. It is a silly game mode,
By realistic, people generally mean something more meaningful and convincing. I completed it for the sake of completing it and because, at the time, I needed the credits. A well executed single player would have you going back again and again because it's fun. GT6 single player is most definitely NOT fun. I never ran the Sunday Cup more than once. I don't recall any event that I ran more than once. That's poor design.
What could have improved it (easily)?
1 - Go back to the GT1 method of single player. Allow for qualifying and have cars of varying PP levels actually race for the win. Since they don't want to add a better way to adjust difficulty, then set the AI car difficulty based on the qualifying time.
2 - Do a better job of hiding the rubber band. This has been beaten to death, but if they employed someone who had experience implementing enemy AI into a game (as in a game designer, not a coder), they'd get more bang for their buck. I've said it before, the AI has the tools to be presented better, but that takes talent and GT6 was phoned in. You can say "no" to rubber bands, but we all do it as real drivers. I push hard to get to the front. If I have a good lead, I back off to stay on track. THAT is what the AI in GT6 should do. B-spec can do it, so the A-spec AI can do it too.
3 - Co-op, as I mentioned above. Give the player the choice to race against only AI cars or against a mix. This wouldn't have been difficult to implement at all.
4 - For street car events, let the AI used tuned cars when tuned cars are allowed for the player. They don't have to be fully tuned,. but weight reduced with tuned parts should be a must.
5 - Have tuning limitations for the player. Some events might force only stock weight, or only Level 1 weight, or no power upgrades, etc.
6 - Have leader board for race finish times against your friends. They have that in Sierra time rally. Give me a small goal to shoot for once the gold cup is won.
7 - THIS ONE ANNOYS THE HELL OUT OF ME!!!! They have an AI with the capacity to learn. Why not have persistent AI drivers? AI drivers that get better with every race, that grow and learn as you grow and learn? AI drivers that keep increasing their level over time. The more you play single player, the better they'd get. WHY IS THIS NOT IMPLEMENTED?? WHY??? It's a SLAM DUNK, LOW HANGING FRUIT WIN! Can you imagine? You'd come to learn the crappy drivers from the good ones. As you move up in single player challenge difficulty, more challenging AI get introduced and they can then compete in the earlier races. ANY game designer worth his pay check would have crucified himself to make this a reality.....but what we got was mediocrity.