Its real easy to take corners in this game, just try not to turn the wheel too much. Seriously. Take parabolica in 4th, slightly brake before easing on to 50/70% power depending on how close you get to the apex. If you miss the apex you will understeer, as you should. Only turn the wheel very slightly, if you are going too fast more steering input only increases understeer. You have to let off the gas slightly, then power back on. If you are still understeering in the middle of the corner you are turning the wheel too far or you are on full power too early, which usually means you are braking too early then getting on the power too early and getting power on understeer. The same thing is true for both lesmos.