observations today:
VWs of any kind - especially Passat, Beetle, and Jetta
Acura RSX - i hardly ever see a guy driving these things any more
Crapalier
Volvo XC70/XC90 - nearly ever other car on the road in boston is one, and nearly every owner is a woman between the ages of 35 and 55.
Ford Escape/Mazda Tribute/Mercury Mariner
Porsche Cayenne (Base or S) - all women
Mercedes ML320/350 (450/500/55AMG are usually male drivers)
And oddly enough I saw more men driving mini-vans today than women. Mostly Dodge Caravans and Mazda MPVs.