Without wanting to make this a rant thread there is a valid comment to be made in this.
The suspension has been lowered by ten millimetres, thereby exposing a smaller frontal area to the airstream.
Taller vehicles, eg. 4x4 and mpv have a larger frontal area due to their height.
I've been thinking about the radiator grille blind, might try it.
Oh..I can feel the flames now....