We will be staying near Arezzo and would like to take a day trip to Pisa and Cinque Terre. We will have a car. Are we better off to take the train from Arezzo to Pisa and then to Cinque Terre or to drive? How long will it take by train? By car? Can we leave our car in Pisa and take the train to Cinque Terre? Is that wise? Thanks for your help.