Italy is one of the few countries in Europe that actually requires foreigners to have an International Driver's Licence. Whilst not having one will not stop you from getting a rental car - you could have problems with the police/insurance if you have an accident in Italy, and particularly if you are at fault. For the small investment - we suggest you get an IDL - which will then cover you in any country that you rent a vehicle in. IDL's are usually available from motoring organisations.
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