Can you advise me on the merits of either means of transportation with the following itinerinary which is "set in stone". Arrive Zurich, stay there 1 night. Travel to Venice for 2 nights, Florence for 2 nights, Milan for 1 night, final night in Zurich. My inclination is to drive for the convenience that an auto can bring and the ability one has to stop along the way to smell the roses,, but I wonder if it is worth navigating,parking, orienting etc. since we are scheduled to be in all these cities.