Our family of 5 will be flying into Rome (FCO) and going straight to Florence. I was thinking that it would be more economical to rent a car rather than using train. In addition, we could stop in Orvieto on our way up. We have driven in Italy before. Does this make sense? We would then like to keep the car for a day or two to drive to CT. We could also hire a car to go to CT if that makes more sense.