Although McLaren haven't opted to use forward-facing exhausts, the team have come up with two different exhaust solutions at the back. One is very traditional (inset) and blows directly towards the rear of the car. The second is much more complex (main image) and features a U-bend pipe, with a bonded section on the side of the car's stepped bottom. This hides the flat and wide exhaust exit, which blows towards the starter hole in the centre of the rear diffuser.