Our upcoming friends trip to Italy starts with a week at an agriturismo in Tuscany, with rental cars. After that, the rest of our time is split between Florence and Rome. The plan has been to drive to Florence after we check out of the agriturismo. We want to get there early, which is easiest to do on our own, with cars, rather than waiting for a car rental place near a train station to open and then taking the train to Florence. We'll return the cars outside of Florence (airport location) and rely on trains for the rest of the trip.
Now part of the group wants to try to work a really brief visit to the Cinque Terre into the trip, staying one night in LaSpezia, after checking out of the agriturismo and before joining the rest of us in Florence. What works best for them?
(1) Drive to LaSpezia, return their rental car on arrival, cab to hotel, have the hotel store luggage, spend the day in CT, take the train from LaSpezia to Florence the next day
(2) Drive to LaSpezia, keep rental cars, park near hotel with luggage locked in the trunk, spend the day in CT, drive to Florence the next day and return cars at the airport there?