Poll: The Wife, or the car???
I've been married almost 20 years so I guess it would depend on the circumstances, and which car. She already knows the answer if she said the Dart or my Cuda had to go, I've owned my Dart since I was 18 and my Cuda was my first car and still has my mothers name on the title since I was 16 when I got it so she knows not to even think it, not that she would anyway.
A woman who would have you make that kind of decision isn't worth having around anyway. I could see it if you went out and spent money out of the joint savings to buy it without consulting with her or something like that but, for a wife to say sell your cars or I'm gone? She obviously don't care about your interests or feelings so I would say hit the road.
How many woman do you know that would give up something they care about if their husband had them make that same kind of decision?