The eight-car, 202m-long trains are now operating in pairs on two daily return services between Turin and Naples, with each 16-car formation seating 914 passengers.
These services depart from Turin at 05.50 and 07.00, calling at Milan Central, Rome Termini, and Naples Central. The northbound services depart from Naples at 11.00 and 14.00.
Trenitalia has also stepped up Frecciarossa services at Milan Rogoredo station, which is now served by 13 high-speed services per day to and from Rome. There are also two new Milan - Pescara Frecciarossa services, and two new Salerno - Milan trains.