To comply with the depth-in-section regulation, we had to have two fins on the top side of the chassis. This would have been a problem in terms of restricting the driver’s vision, if not for the fact that we capitalised on what we knew about a driver’s vision during a race, which is that he has almost digital eye movement. He’s looking either straight ahead down the straights focusing on the next braking area, or diagonally across at the apex of the corner. That means there’s an area he never bothers looking at.