Is there a car rental service at the port?
'Noleggio' — no-LED-jo. The 'ggio' ending sounds like 'djo'; stress on the second syllable.
Ask when you arrive at an island or destination port and need a rental car to explore. Many ferry ports in Sardinia, Sicily, and Elba have car rental desks.
'Noleggio' means rental (for vehicles, boats, equipment). 'Noleggiare' is the verb. Different from 'affitto' which is longer-term rental (apartments). 'Servizio di noleggio auto' is a car rental service. The question uses 'c'è' (existential) + complex noun phrase.
Dove noleggiano biciclette?
Where can you rent bicycles?
Ask on smaller islands where bike rental is common.
Posso prenotare un'auto ora per domani?
Can I book a car now for tomorrow?
Advance booking request.
Quanto costa un'utilitaria per tre giorni?
How much is a small car for three days?
'Utilitaria' is a small economy car.
Sardinia is best explored by car — public transport on the island is limited outside the main towns. Renting at the port (Olbia, Cagliari, Arbatax) and driving along the Costa Smeralda or Barbagia interior is the classic Italian summer holiday formula.