I would expect it's Bollox as Cosworth is no longer either an independent engineering company. The fact that Ford no longer have shares or close ties to any part of Cosworth which they sold to Champ Car World Series owners Gerald Forsythe and Kevin Kalkhoven also supports this.

The other fact that the wheel arches are not clean suggests that either ford are shaping wheel arches with blind engineers or that this is in fact a photoshop.. The obvious incorrect angle of the rear spoiler when viewed through the window suggests the same

A crap photoshop imho