I am traveling with my 2 adult age children from Nice, France to Poretta Terme, Italy. We depart after the music festival out of Milan. I am wonder what is the best way to get to Poretta. Right now I am considering flying from Nice to Milan and driving 2-3 hours to Poretta Terme, south of Bologna and north of Florence. One of my children could share the driving. In deciding, I must consider that I am buying 3 one way tickets: either air or train, and compare that to cost of a car rental which must be automatic as that is all we drive.
I could save a lot if I did not need a car in Poretta. I could stay in a more expensive local hotel close to where the festival is without a car. Or I have a cheaper hotel at 25 minutes out of the town (not convenient) where I would need the car. Prices are elevated near the dates of the festival. Any better/cheaper ideas of how to get to Poretta and arrange this trip?