It looks like they did the same thing as Ferrari (notice, I’m not saying they copied them ), the additional wing above the rear axle is mounted on an extension of the cover that contemporarily satisfies the rules on the engine cover length introduced last year, the solution has been tested on the F2004 before the start of the ’04 season (although never used in races) and is now on the F2004M. On the McLaren the cut is a bit more curved but the concept is the same.bernard wrote: The engine cover has a new design too, there is now a cut in it, , it might be connected to the rearwing, I'm not sure because there are no good pictures