Five of us will be driving from Rome to the Arezzo region of Tuscany. We'll need either 2 cars or a van as we will all have large suitcases. Once at our rental villa we will only need one vehicle so the van is our initial thought but we're wondering if it will be difficult to navigate the roads in a van. We will be driving to Siena and several other hill towns and we were wondering if the roads are narrow and winding or wide and easy to drive on. We'd really appreciate some input on this.