Will be driving down from from Tuscany to Positano, where we will be for 4 days and then head off to Capri.
One option is to drive into Naples or Salerno (Positano has no Hertz or Sixt stations), drop the car off and be in Positano without a car. This would avoid any hassles associated with driving in the Amalfi region. But it will involve transferring from Naples to the hotel in Positano with kids and luggage.
The other is to keep the Car during the stay in Positano. The hotel in Positano offers a valet car park (for a fee). This will allow a daytrip(s) to Ravello or just a drive down the coast. Have driven in France, Switzerland and Spain (even the Riviera in summer), but never in Italy