Kensei -
I would harldy say that the RGT is bomber stable through the corners - straights yes - corners no. (I presume you are playing without TCS and ASM - as that changes everything.)
All 911's (among which we can count the RGT), both in real life and in a good simulation, suffer from the physical reality that the center of mass is near the rear axle due to the rear engine configuration, giving them a weight distribution of something like 40/60 Front/Rear. As a result, once the car begins to oversteer, all of that mass keeps going in a straight line, giving 911's the reputation of being easy to lose and hard to catch in a fast corner. In real life, PSM handles most of that, as does ASM in the game - as long as you use it. If you don't, you have to avoid abrubt throttle lift so that the rear of the car doesn't stand up, unweight the back tires, and make the stick go away. I think that GT4 and the new physics engine simulate this very well, and it only makes the car more fun and challenging to drive well. My point in all of this is that it is very hard to call an RGT, or any 911, super stable through the corners, particularly when compared to cars with a 50/50 weight distribution and a MR configuration. 911s are by far my favorite car none the less - and I really wish the game included them.
By the way - you probably know all of this already - so no offense intended.
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