I'm guessing and hoping they get rid of it. It makes it far too easy to get the F1 car. I don't mind it for arcade mode or if you only got to use the F1 car for that session only but you shouldn't be able to put some brain dead settings in place, walk away and come back and you have the F1 car with almost no pain and suffering on your part. I finished 24 hour races six times, all of them using "pause" and it worked just fine. A save feature would be a compromise but if they limited it to a few saves, that would be OK with me. Unlimited saves just makes it too easy for people to pass around their saves and again, that's getting something without much effort. Getting the F1 car is supposed to mean something. With B-Spec they made it meaningless. At least 100% gold licenses is something I could be proud of. In fact, if someone got 100% gold licenses, I would have no problems with letting them B-Spec, but I seriously doubt anyone who gets 100% gold is going to do something like B-Spec an F1 car. This is just my opinion.
IMO, either allow me to save when I pit, or get rid some ridiculously long races. Even 6 hours is enough to simulate the feel of an endurance race, when all the other races are 15 laps or less. I'm a huge racing fan, but even I said WTF were they thinking, when I saw that there really were really 24 hour races in GT4. And if you're gonna add 24 hour races, it's almost a crime not to add the Daytona 24hr course, Seibring, or Spa ect.