Sam and I have Mustangs, and I'm fairly confident that neither of us knows exactly what the Mustang cologne people are talking about. Sam's is actually finished in Vista Blue, though, so maybe this is targeted more towards him. My personal favorite Mustang scent is Smoked Pirelli, but I suppose that has less broad consumer appeal than whiffs of sandalwood, hay and patchouli. Now that Mustang Cologne has spawned its first official variant, Shelby, Bullitt, and California Special edition scents can't be far off.
[Source: The Mustang Source]