It seems like Rome is having the same problem that my city is having, and that's parking. I have a car and I have already paid two parking tickets, because I left the car for 5 minutes where I wasn't supposed to. But that's only because there is literally not enough parking spaces. There are over 100.000 registered cars in my city, and only around 2000-3000 registered parking slots. I actually read an article on this, and I'm not making these numbers up. I even refuse to go to the town with my car, because I don't have anywhere to leave my car, other than the paid parking, and that's like 1€ per hour which is a lot.