Brake early, accelerate thru the apexes. Take a few slow laps, and figure out where the apexes are, as you speed up the laps figure out the latest braking point so that you can turn in and accelerate thru the apex of the turn. The Bugatti does not turn well, so you get your best times making the most of your straight line speed. Go to the GT6 video section, I think Twissy and Tidgney have videos of golding that event. You won't be able to do what they do, but it will show you the correct lines.