Ummmm...
'84 Escort = .36 Cd (or .38- depends on source:
http://autopolis.wordpress.com/2011/...e-down-effect/ )
'12 Rustang = .36 Cd
No doubt the Escort enjoys a nice frontal area advantage too...
Squinting... can't... read... Cds... in... aero... section.
But I do love that aero arrow illustrating the flow over the roof!