We are planning a trip starting Rome to Pienza area so we can visit the famous montecino, montepulciano vineyards, then Cinque Terre, then on to Florence. We're trying to make an efficient line of travel. I can't tell if the train from Rome goes to Pienza. Once we get there is there car rental in Pienza to visit the surrounding vineyards. Then from there I'd like to continue by train to Cinque Terre. Does anyone know about the availability of car rentals in Pienza, then train travel up the coast from there?