In certain courses when there are gradual turns with hard walls and no dirt between them and the track (for example, Costa di Amalfi), instead of braking and trying to take the inside of the turn at the suggested speed, put the pedal to the floor and head for the outside wall of the turn. As soon as your car begins turning in the "suggested" direction the wall is pushing it to, turn your wheel in that direction. If you manage to hit the wall at the correct angle without hitting it directly, you will "scrape" the side of the walls at high speed, and exit the turn quicker and with more speed than braking and turning on the inside. This can shave off quite a few seconds from your lap time with enough practice.