Originally Posted by Dr Ken
I think those figures represent ideal laminar flow. Bear in mind, the wind behind our steep rear window can be a bit choppy.
In addition, the few available parameters (thickness, camber, chord, span, and angle of attack) do not uniquely describe the STi wing imho. A slight variation in shape within wings of the same parameters above could result in different location of flow separation etc., causing a very different aerodynamic behavior.