There is a definite, but subtle difference to the way forces are applied to the car body.
Put simply, it feels like whereas before cars merely had a resistance to rotation (pitch, roll, yaw), they now feel as though they have inertia.
That explains the at once freer, but also more hefty feel to any body rotations (which are what cause "weight transfer").
To help confirm this, I did a bit of stunt driving at Willow Springs and the Trial Mountain jump. Impacts and jumps seem to more realistically impart rotation to the car, but it's still a dead sailor in the air (aero model), and whilst the "break dancing" has been reduced greatly, the collision model still does weird things.
This inertia modeling could also contribute to the sense of speed, especially in cockpit view. The little jiggles and realistic resistance to larger impacts can be seen in the camera bobbing. Replays look more dynamic, also.
Not perfect, but a definite improvement nonetheless. Moreover, it's the direction I thought they should move in, in terms of priorities, so I'm glad they listened to me.
(If only).
That said I did take over from him on a championship race and drove the Mazda LM55 for the first time and my god did it feel fast, Also when I drove the Lamborghini Diablo GT on Midfield this afternoon that felt ungodly fast aswel but probably just a placebo from Captain "bob" slow.
