McLaren continues to pursue more performance from the MP4-31 by making several changes to its front wing design in Bahrain.
1. The mainplane has been altered at the juncture with the neutral section, which will change the way in which the Y250 vortex forms, reshaping the airflow along the centreline of the car.
2. The strakes which define the flow under the wing have been reduced in number, from four to three, increasing the space between them.
3. The main cascade has been revised, with the flap curved even more than its predecessor.
4. The upper flap has been revised, with the trailing edge shape amended.
These changes aren't revolutionary, rather a refinement of what has gone before as McLaren continues on its never-ending search for maximum performance and efficiency.
Additional reporting by Matt Somerfield