I consider myself to be pretty leftist, and yet I have no objection against expensive cars. (I'll be off to Pebble Beach in a couple of weeks). What I do object to is owners of expensive cars who seem to think that traffic rules do not apply to them in general.
But as you said, let's leave politics out of this discussion. Yet, in a world where appearences seem to play a certain role, it is difficult to fully leave politics out of the equation.