The thing most Parisians don't realize is that Paris is the center of a 10 million people metropolis, it's not Annecy or Cambrai !!! Paris represents an area of 105 square kilometers, dozens of thousands of shops, malls and boutiques, 6 million people by day and 2 million people by night. How do you want this to work without motorized vehicules ? Do you want delivery services to bring through the subway the goods you could buy in your pedestrian streets afterwards ? Pedestrian neighbourhoods are fine, but they can only be limited in size. And this will be the case untill we invent merchandise goods teleportation. Once again, I really have the feeling most students in Paris, and this includes the Parisians in this forum, don't have a clue about the place they are living in. And sincerly, how cars are that much an annoyance ? What difference would it really make if the Champs-Elysées were pedestrian ? That would kill the activity in the center of Paris, because the city cannot materially live without motorized vehicles, and for which benefits ?