When countersteering and stuff do you feel the resistance of the wheel or does it always feel the same no matter how your car is? In other words is it harder to turn the wheel at time like in real life?

Not sure what your asking but driving in real life counter steering or even going lock to lock over 30 mph is easy in most cars even without Power Steering in my experience.

In GT5P there is most always some force feedback and some resistance, and for each car is slightly different with race cars a bit heavier and it can get stronger as you turn. G25 also self-centres like a real car but the only it doesn't do is say when stationary or very slow in real life without PAS, steering is heavy but in game its no heavier but that doesn't matter too much.

If you get out of control with medium-high feedback it can snap quickly as like in real life it can snap out of your hands and to turn it back takes force but normal counter is light in real life and the game.