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Toyota are trying two front wing designs in Germany, featuring flaps with different widths and top-edge shapes. The wider flap (top arrow) extends very close to the central spoon, while the top edge of the narrower one (bottom arrow) descends towards the centre of the wing. The wider version adds downforce, but also makes the car more pitch sensitive. Which one to choose depends on the desired balance between the front and rear of the car and between top speed and braking stability.