Leftists hate the idea of cars (at least for other people). Cars allow people freedom to go where they want, anytime they want. Can’t have that.
If you just robbed a bank, do you want to run outside to your waiting car, or go outside to wait at the streetcar stop?
I am not advocating robbing banks, of course, but it is a dramatic example of somebody wanting to exercise his freedom without government control. This is the case, to a lesser extent, for each of us, every day.
I want to do what I want, and go where I want, when I want, without the interference or control of the state. For that, I want my car.