I've always said that anyone who thinks a Miata is a girl car has never driven on a road course. Those little things are FAST in the right hands.
The CX-5...now that you mention it, I don't think I've ever seen a guy driving one in person. three of my neighbors have them and their all female. weird, because it doesn't seem feminine to me.
Maybe it's just a better car than the other choices out there, and women aren't as brand loyal as men, so they are willing to try a Mazda out. That's my pot smoked filled theory anyway. lol