I think this is a critical aspect: the current statistics on who takes which mode of transportation are hopelessly distorted. The current system is broken every which way. For the San Francisco Bay Area you don't take one or the other because you like it. You take one because the other is even more messed up. You can't even "like" one if it's right under your door. Parking is (deliberately) terrible. Car windows broken entirely expected to happen sooner or later (pretty deliberately also really). Transit shows up or not. And is slow. And might break down right under you. And is a war zone. The potholes are massive enough they affect the busses just fine, etc, etc. Back to the point at hand: looking at how many trips are taken in one or the other tells you nothing about people's preferences. The preference would be NEITHER.
