A Catania chauffeur service is a private car with a professional driver, booked in advance at a fixed price and carried out by an NCC operator (noleggio con conducente) licensed by a Sicilian comune under Legge 21/1992, the national law for non-scheduled road passenger transport. It is not a taxi and cannot be stopped in the street. Whether the job is a Catania airport transfer, an hourly car service around Etna or a black car to a dinner in Ortigia, the vehicle, the chauffeur and the total are agreed before the day.
That matters more here than in most Italian cities because the drives are long. Almost nobody stays in Catania itself: the typical booking is the 70 km to Taormina, the 64 km to Siracusa and Ortigia or the 87 km to Noto, and a taxi run that far is priced on the comune's tariff rather than a number you know in advance. A reserved car service in Catania quotes the full door-to-door fare, with 10 percent IVA and any motorway toll inside it, which is why travellers use it as a taxi alternative for anything beyond the city centre.
The same booking reaches the rest of the island. Catania to Palermo and Cefalù across the interior, Agrigento for the Valley of the Temples, Messina for the Strait ferry, and private transfers between hotels when a trip moves from the coast to the baroque towns. For companies bringing teams to Sicily for incentives or events, one account covers weddings, groups and corporate travel on the same fleet, and every route from the airport has its own page with timings.