Dataset - TDC Data Portal

Italy ANFIA Dati Statistici
- Light vehicles, monthly trend
- Passenger cars by province and owner
- Passenger cars, market structure
- Passenger cars, press release...
Vehicle Sales - road - GFEI

Vehicle Sales - powertrain, kerb weight, CO2 emission class
- ZIP
- CSV

You can also access this registry using the API (see API Docs).